Speed

CBSE IX Physics Motion

diffrence between speed and velocity

CBSE IX Physics Motion

difference between speed and velocity

CBSE IX Physics Motion

(a) distance between delhi and agra is 200km. atrain travels thefirst 100km at the speed of 50km/h. how fast must the train travel next 100 km so as to average 70km/h for the whole joueney?

(b) ona 120 km track, a train travel the first 30 km at speed of 30 km/h how fast must the train travel the next 90km so as to average 60km/h for the entire tip?

ICSE X Physics Machines

why can't a machine work as a force and a speed multiplier simultaneously?justify.

CBSE XI Science Physics Motion in a Straight Line

FIND THE AVERAGE SPEED OF AN OBJECT WHOSE SPEED-TIME GRAPH IS GIVEN BELOW.

ICSE X Physics Force

A train starts from rest and moves with a constant acceleration 'a'. The guard of the train reaches the end of the platform with a speed 'v' and a passenger exactly in the middle of the train reaches the end of the platform with a speed 'u'. Determine hte speed with which a passenger seated mid-way between the guard and the passenger mentioned earlier, crossed the platform. Express it in the form of 'v'.

CBSE IX Physics Motion

A vehicle moving with a speed of 36km/hr see a red light ahead and applies breaks and stops after covering 10m distance on a moving. Another vehicle moving  at a speed of 72km/hr and applying breaks it stops after covering 30m distance. Assuming same reaction time and same deceleration in each case what is the distance covered before stopping when breaks are applied on the vehicle when it is moving at a speed of 54km/hr

CBSE XI Science Physics Laws of Motion

In uniform circular motion, do the speed and angular velocity change?

Gujarat - Gujarati Medium IX ગણિત ગણક્રિયાઓ

4 hrs after a goods train passed a station, another train travelling at a speed of 72 km/hr following that goods train passed through that station. If after

passing the station the train overtakes the goods train in 8 hours. What is the speed of the goods train?

ICSE X Physics Work, Energy and Power

Speed of particle increases by 20%.How many percent its kinetic energy increases

ICSE VIII Maths Direct and Inverse Variations

A train crosses two persons who are cycling in the same direction as the train, in 12 seconds and 18 seconds respectively. If the speeds of the two cyclists are 9km/h and 18km/h respectively.Find the length and speed of the train?

ICSE VIII Maths Direct and Inverse Variations

Two trains are running at 45km/h and 54km/h cross each other in 12 seconds when they run in opposite direction. When they run in the same direction,the person in the faster train observes that he crosses the other train in 32 seconds. Find the length of the two trains?

ICSE VII Maths Speed, Distance and Time

Sound travels at 335 metre per second in air. Find its speed in km per hour.  

CBSE VII Maths

a spaceship travels 36000km in one hour.express its speed in km/hr?  

JEE Plances JEE (Main) Physics

A particle (P) of mass m is released from rest at point A on a curved smooth wedge of mass M,free to move on smooth horizontal surface .Velocity of wedge w.r.t ground is V1 and velocity of particle w.r.t wedge is V2 at,when particle is point B.Momentum conservation equation in horizontal direction can be written as   

ICSE X Maths

The speed of a boat in still water is 8km/hr. It can go 15km upstream and 22km downstream in 5hrs. Find the speed of the stream. 

CBSE X Physics

A particle in uniform acceleration in a straight line has a speed 'v' m/s at position 'x' metres is given by v =        sqrt( 25 - 16x).  Find the acceleration of the particle. Kindly make use of differentiation for solving the above question.    

JEE Plances JEE (Main) Physics

Sir  pl solve quest no 2

NEET1 NEET1 Physics

A ball is droped from a high rise platform t=0 starting from rest. After 6s another ball is thrown downwards from the same platform with a speed v . The two ball meet at t=18s . What is the value of v ?      1)74m/s          2)64m/s .  3)84m/s.    4)94m/s

CBSE X Physics

A man short a bullet with a speed of 10 m/s which just penetrates a plank of wood . With what speed should he shoot a bullet to pass through 10 similar planks.

JEE Plances JEE (Main) Physics

Sir  Pl solve Question no-11 attached

NEET1 NEET1 Physics

A : The acceleration-time graph for an object moving along straight line, starting from rest is as shown in figure. Speed of the particle is maximum at time t1. R : Velocity is maximum when acceleration is maximum.

CBSE X Maths

A boat covers 32 km upstream and 36 km downstream in 7 hrs. Also, it covers 40 km upstream and 48 km downstream in 9 hrs. Finf the spead of the boat in still water and that of the stream.

NEET1 NEET1 Physics

sir please answer

CBSE XI Science Physics

1?

CBSE XI Science Physics

A particle of mass m is at rest at the origin at time t= 0. Is subjected to a force F(t)= Foe-bt in the x direction. Graphically show the variation of speed with time and justify your answer.

CBSE XI Science Physics

5?

NEET1 NEET1 Physics

Two stars each of mass 'm' and radius 'R' approach each other to collide head-on. Initially the stars are at a distance r(>>R). Assuming their speeds to be negligible at this distance of seperation, the speed with which the stars collide is?

JEE Plances JEE (Main) Physics

Sir Pl solve question no-23

ICSE X Physics

Pendulum Bob is pulled to one side until its centre of gravity is raised by 20 CM above the mean position calculate the speed of Bob as it passes through the mean position

ICSE X Physics

A pole vaulter clears the Max Height of 5m what is the speed with which he should run carrying the pole

ICSE VII Physics Motion

a man walks at aspeed   

CBSE IX Physics

A JUGGLER THROWS BALL VERTICALLY UP AT AN INTERVAL OF 1 s. HIS MAX SPEED OF THROW SO THAT SIX BALL IN AIR IS ----------. g = 10m / s SQUARE

CBSE IX Physics

Is there any difference between speed and velocity?

JEE Plances JEE (Main) Physics

Solve it

JEE Plances JEE (Main) Physics

In the given situation when rod is moving with speed 10m/s, speed of wedge is

NEET1 NEET1 Physics

Please solve this problem  

JEE Plances JEE (Main) Physics

Q no.9

ICSE VII Maths

A TRAIN 140 M LONG IS RUNNING AT 60 KM PER HOUR. IN HOW MUCH TIME  WILL IT PASS A TUNNEL 260 M LONG ?

CBSE XI Science Physics

An aeroplane is flying horizontally at a height of 980 m with velocity 100ms-1 drops a food packet . Aperson on the ground is 414m ahead horizontally from the dropping  point. At what velocity should he move so that he can  catch the food packet

NEET1 NEET1 Physics

A ball is projected horizontally with a velocity of20ms-1 from the top of the tower of height 78.4m. at the same time a boy who is 140m away from the foot of the tower starts running to catch the ball. With what constant velocity he must run to catch the ball before hitting the ground (neglect the height of the boy)

CBSE X Science

as we know that the speed of electron is very slow then also when we switch on light it starts immediately. how does it happen

ICSE VII Maths Speed, Distance and Time

Find speed distance 6km and time 2hours  

ICSE VII Maths

A policeman follows a thief is 800 metre ahead of him. If they run at the speed of 8 km per hour and 7 km per hour respectively, How long the policeman take to catch up with the thief?

JEE Plances JEE (Main) Physics

The blocks A and B shown in fig have masses MA =5kg and MB=4kg.The system is released from rest.The speed of B after A has travelled a distance 1m along the incline is

ICSE VI Maths

A cyclist completes 15 laps around an oval racing track 400m long in 8 minutes. Find the speed of the cyclist in km/h.

JEE Plances JEE (Main) Physics

A particle of mass m is fixed to one end of a light rigid rod of length l and rotated in a vertical circular path about its other end .The minimum speed of the particle at its highest pt must be

CBSE VII Science Motion and Time

Varun runs 800m  in 2 minutes 40 seconds. What is his speed in metres per second and Km/h ?

CBSE VII Science Motion and Time

Name the instrument which is used a) to record the distance covered by a vehicle. b) to indicate the speed of a running vehicle.

CBSE VIII Maths

a train travels 360 km at a uniform speed. if the speed had been 5 km/hr more, it would have taken 1 hour less for the same journey. find the speed of the ratio ?

CBSE VIII Maths

the speed of a boat in still water is 8 km/hr . it can go 15 km upstream and 22 km downstream in 5 hours. find the speed of the stream

ICSE VII Maths

Two trains 320m and 430m are moving in the opposite directions at a speed of 50km/hr  and 40km/hr how long will it take the trains to pass each other

ICSE VII Maths Speed, Distance and Time

Tina took 7/3 hours to travel 4/9 of the distance between town A and town B at an average speed of 72km/hour. what was Tina's average speed if she took 4 hours 12 minutes to travel from town A to town B. 

CBSE IX Physics

A Car coves 30km at a uniform speed of 30km/hr.What should be its speed for the next 90km if the average speed for entire journey is 60km/hr ?

ICSE VII Maths

A car started from town P and travelled towards town Q at 70km/h . At the same time a van started from town Q and travelled to town P at 60km/h . After 11\4 hours they were 65km apart still traveling toward each other . 1 what is the distance b/w the two  town . 2 After how many hours of travel would they cross each other .

CBSE VIII

A car with speed 60 km/he takes 8 hrs to travel some distance. Why should be the increase in the speed of the same distance is to be covered in 7 1/2 hours?

CBSE IX Maths

After covering a distance of 30km. With a uniform speed there is some defect in a train enzine and therefore its speed is reduced to 4/5 of its original speed consiquetely the train reaches its destination late by 45 minutes had it happened after covering 18 km. More the train would have reached 9 minutes earlier find the speed of train and distance of journey

ICSE VII Physics Motion

A car travels with speed 30km /h for 30mins .and then with speed 40km/h for one hour find the total distance traveled by the car

Maharashtra X Maths

The forewheel of a tractor makes 120 revolutions more than the rear wheel is going 720 m. If the diameter of the forewheel is doubled and the diameter of the rear wheel is increased by 1.5 times the present diameter, then the forewheel makes 20 revolutions more than the rear wheel in going the same distance. Finf the circumference of each wheel.

ICSE VII Maths

A boy covers a distance of 4.32 km in 4 min 48 s. find the speed of the boy.

CBSE XI Science Physics

Rain is falling at angle 45°east of vertical. A person moving due East at 10m/s observes rainfall vertically downward. Then speed of raindrop with respect to ground is?

CBSE VII Science

sachin and sameer started on a motorbike from place A took turn at B did the task at C travelled by the route CD to D and then went on to E. Altogether, they took one hour for this journey . Find out the actual distance traversed by them and the displacement from A to E. From this , deduce their speed . What was their velocity from A to E in the direction AE? Can this velocity be called average velocity  

CBSE IX Physics

A player throws a ball vertically upwards. The ball attains height of 25m and then returns back. Find the initial speed of the ball? 

CBSE VII Science

Distance between Bholu’s and Golu’s house is 9 km. Bholu has to attend Golu’s birthday party at 7 o’clock. He started from his home at 6 o’clock on his bicycle and covered a distance of 6 km in 40 minutes. At that point he met Chintu and he spoke to him for 5 minutes and reached Golu’s birthday party at 7 o’clock. With what speed did he cover the second part of the journey? Calculate his average speed for the entire journey.  

ICSE IX Physics

In acceleration time graph how speed finding by area enclosed under the graph . detail understanding

CBSE VII Science Motion and Time

A unit that does not represent speed is _ .

CBSE VIII Maths

Karan can walk a distance of 210m in 90min. Find the time taken by him to cover a distance of 560m    

CBSE VII Science Motion and Time

How are distance, time and speed related to each other 

ICSE VII Maths Speed, Distance and Time

A girl walks 12 km at the speed of 3 km/h.what change should she make in her speed to take (i)an hour less (ii) an hour more to cover distance.

ICSE VII Maths

the school record for the 4*100 m relay race is 59seconds. When an anchor runner edge the baton, already 45 2/3 seconds are up. At what speed must he run in order to equal the school record?

ICSE VII Maths Speed, Distance and Time

A man walks at the speed of 4km/h. A train coming from behind him at the speed of 22km/h passes him in 30s. Find the length of the train

ICSE VII Maths Speed, Distance and Time

If u can cycle at an average speed of 12 km per hour,how manykm can you cycle in 2 hours 45 min

CBSE X Maths

Places  A and B are 80km apart from each other on a highway. A car starts from A and other from B at the same time.if they move in same direction they meet in 8 hours & if they move towards each other they meet in 1hr. 20 minutes.Find the speed of the cars.

JEE Main Maths

a train crosses Deepak& dilip in 20 seconds &30 seconds respectively who are running in same direction train at the speed of 18kmph and 36kmph respectively.find speed of the train

ICSE VII Maths Speed, Distance and Time

A motorist travelled 1/2 of his journey at 60km/h and completed the remaining 90km in 3/2 hours. What was his average speed for the whole journey?

ICSE IX Maths

Questions number 30

ICSE VII Maths

Q.15,16

ICSE VII Maths

A motorcycle travels at 30km/h and stops for half an hour at the end of every 75 km. How long will it take him to cover 375 km?

ICSE VII Maths Speed, Distance and Time

The area of a rectangular field is 3584 m² and its length is 64 m. A boy runs around the field at the rate of 6km/h. How long will he take to go 5 times around it? 

ICSE VII Physics Motion

rahul cycles at 12km per hour. how distances does he covers in 36 minutes  

CBSE VIII Maths

The distance between two towns is 300 km. Two cars start simultaneously from these towns and move towards each other. The speed of one car is more than the other by 7km/hr. lf distance between the cars after 2 hours is 34 km, find the speed of the cars 

CBSE XI Science Physics

11th sum

ICSE VII Maths Speed, Distance and Time

Ravi walks at a uniform speed of 12km per hour how much time he takes to cover 6000m

ICSE VII Maths Speed, Distance and Time

Ravi walks at a uniform speed of 12km per hour how much time he takes to cover in 600m 

ICSE VII Maths Speed, Distance and Time

a train covers the first 160 km of ajourney at 40 km/h,the next 180 km at 45km/h , and the last 200 km at 50km/h .  1..the total time it takes to complete the jourmey? 2..the average speed of the train during the whole journey?

ICSE IX Physics

An engine is approaching a tunnel surmounted by a Cliff and emits a short whistle when 1km away. The echo reaches the engine after 5 second.calculate the speed of engine assuming the velocity of sound to be 340m/s.  

CBSE X Biology

A faster train takes one hour less than slower train for a journey of 200km.if the speed of a slower train is 10km/hr less than of a faster train find the speed of a two trains 

ICSE VII Maths Speed, Distance and Time

Two race cars travel in a ways at 90kmph and 120kmph respectively. if d secound cars take 30min less than the first car ,find the distance covered to complete the race .

Junior V Maths

Ashish speed of running is 9 m/sec. How much distance will he run in 2minutes 30 seconds?

CBSE X Maths

ICSE VIII Physics Kinetic Theory of Matter

particles of which matter move with high speed and why

CBSE X Maths

Places A and B apart from highway.A car starts from A point and other from B at the same time. If they go in the same direction,they meet in 9 hours and if they go in opposite direction, they meet in 9/7 hours.find their speeds.

CBSE IX Physics

At a certain instant, an auto driver is driving at a speed of 30 kmh—1.Then he uniformly accelerates the auto and after 2.5 minutes,the speed of his auto becomes 60kmh—1.What is the average speed of the auto?  

JEE Main Physics

the blocks a and b are shown in the figure have masses 5 kg and 4kg respectively.the system is released from rest.the speed of b after a has travelled a distance of 1 m along

CBSE XII Science Physics

Hi

JEE Main Physics

solve

JEE Main Physics

solve

ICSE VII Physics Physical Quantities and Measurement

A girl walks a distance of 2 km in 40 minute. Find her speed 

ICSE VII Maths Speed, Distance and Time

Gurpreet jogs a distance of 12 km in 40 minute. Find his speed in km/h and m/s.

CBSE X Maths Pair of Linear Equations in 2 Variables

A boat covers 14 kms in upstream and 20 kms downstream in 7 hours. Also it covers 22 kms upstream and 34 kms downstream in 10 hours. Find the speed of the boat in still water and of that the stream.

CBSE XII Science Physics

Tick correct answer only one is right 

CBSE IX Physics

diffrent between speed and velocity  

ICSE X Maths Quadratic Equations

A train covers 120 km at a uniform speed if it's speed is increased by 15km/h it would have covered the distance in 40 mins less find the original speed  

CBSE IX Physics Motion

A car travels a distance of 360km in 5 hours. what will be the speed in m/s?

NEET NEET Physics

A man runs towards mirror at a speed of  10 m/s. What is the speed of his image?- (1) 20 m/s, (2) 10m/s, (3) 30 m/s, (4) 5 m/s.

ICSE VII Physics Motion

4 A car travels for 11/2 hour with a constant speed of 65 km/h and then travels for 45 minutes with a constant speed of 80 km/h. What distance did the vehicle cover?

ICSE VI Maths Perimeter and Area of Plane Figures

A train is running at a speed of 90km/hr.if it crosses a signal in 10 se. Find the length of the train in meters, 

CBSE VIII Maths Comparing Quantities

Nitin walks at 3/4 of his usual speed and reaches home 10 minutes late find the usual time taken by him to reach home?  

ICSE VII Maths Speed, Distance and Time

A bus travelling at 42 km/h covers a distance in 5 h. How much time would it save if it increased its speed by 8 km/h?

ICSE VII Maths Unitary Method

(Q.1)  A woman walks a certain distance in 84 min. she covers two third of it at 4 km/h and the rest at 5 km/h.           find the total distance she covered. (Q.2)  A man walks at 6 km/h and runs at 8 km/h. He covers 6km in 50 min partly by running and partly by                 walking. (i) for how long did he walk?  (ii) What distance did he cover walking? (Q,3) the speed of the train is 30 km/h. how long will it  take to cross a signal if its length is 25 m? (Q.4) How long will a 50m- long train travelling at 72 km/h take to cross a pole?

ICSE XI Science Physics

Please solve as fast as u can

CBSE X Maths

The distance between two places is 425km.If a car drives at a speed of 50km/hr and starts the journey at 10:30 am,when does it reach the place?

ICSE VII Maths Speed, Distance and Time

A man walks at 6km/h and runs at 8km/h. he covers 6km in 50 min partly by running and partly by walking. (i) for how long did he walk? (ii) What distance did he covers walking?

CBSE XII Science Physics

Q62 given answer 2

ICSE VII Maths Speed, Distance and Time

Q.1(i)  the speed of a train is 30 km in how long will it take to cross a signal. if its length is 25 m? (ii) how long will a 50 m long train traveling at 72km/h take to cross a pole?

ICSE VII Maths Speed, Distance and Time

Q.1 Ravi and john are standing 300 m apart. if they run towards each other with the speed of 2 m/s  and 1 m/s respectvely.how much time will they take to cross each other.?

ICSE VII Maths Speed, Distance and Time

Q. A man walk at the speed of 4 km/h. A train coming from behind him at 22 km/h passes by him in 30 s. find the lenght of the train.

CBSE IX Physics Motion

Give the example  of uniform speed and non-uniform speed.

CBSE VIII Maths Linear Equations in One Variable

a man drives at the 35 kilometre per hour he reaches his house 4 minutes late. if he drives at the 45 kilometre per hour he reaches his office 3 minutes early how far is his house.  

ICSE VII Maths Speed, Distance and Time

A truck and a bus started off at 10: 30 am from opposite end of highway the truck traveled at a speed of 40 km/h and a bus travel at a speed of 54 km/h. If they pass each other at 1: 00 PM. What was the length of highway? 

ICSE VII Maths Speed, Distance and Time

A man travels a distance of 120km in 4hours and 30 minutes.Partly by a Bus at a speed of 35km/hr and partly by bike at a speed of 20km/hr. Find the distance covered by him by bike.

CBSE VII Science Motion and Time

How to find the time when the speed is given  

ICSE VII Maths Speed, Distance and Time

A train covers the first 60km of its journey at a speed of 80km/h the next 90 km at a speed of 100km/h and the rest of its 330-km journey at a speed of 120km/h. find the total time taken to complete it's journey. also find its average speed

ICSE X Maths

If the speed of the car is increased by 10km per hr,it takes 18 minutes less to cover a distance of 36 km.Find the speed of car

NEET NEET Physics

Please answer this question

ICSE VIII Maths

Nitin walks 3/4th of his usual speed and reaches his home 10 minutes late, find the usual time taken by him to reach his home.

NEET NEET Physics

What is the velocity of block B?

ICSE VI Maths Linear Equations in One Variable

A plane travels 2400 km in 3 hours 20 minutes find its speed in a kilometre per hour 

CBSE X Maths

wo goods train each 500 m long, are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one. A. 12 sec B. 24 sec C. 48 sec D. 60 sec

ICSE VII Maths Speed, Distance and Time

A car running at 45km/hr takes 6 hours to journey what speed must it travels journey to complete in 5 hours

CBSE IX Physics Motion

a car moving at certain speed stops on applying brakes with in 16 m.if the speed of the car is doubled,maintaining the same retardation.then at what distance does it stop?Also calculate the percentage change in this distance.

CBSE XI Science Physics

How fast will an object be moving when at infinity if it is launched with a speed of 22.4km/s from the surface of earth

ICSE VII Maths Speed, Distance and Time

A dog runs at a speed of 100 metre in a minute . Find its speed in km/hr    

CBSE XI Science Physics Motion in a Straight Line

A man goes from A to B at 40km/h speed and return B to A at 60km/h

ICSE VII Maths Speed, Distance and Time

A car X starts at 5p.m. at a speed of 60 km/h. Another car Y starts from the same point at 6:20 p.m. at a speed of 80km/h . At what time will X and Y meet each other?   

JEE Main Physics

find speed of charge particle

JEE Main Physics

find velocity of particle

ICSE IX Physics Measurements and Experimentation

It takes 8 minutes fro light to reach from the sun to the earth surface .if a speed of light is taken to be 3×100000000 m /s find the distance from the sun to the earth in km.

NEET NEET Physics

For a particle moving along a straight line, its position (x) is given by x = (t – sint), where t is time. The ratio of maximum speed to its speed at  is

CBSE IX Physics Motion

draw a diagram to show the motion of a body whose speed remained the constant but velocity constitution change

CBSE X Science

what is the speed of slow moving neutron

ICSE VII Physics Motion

What is mean by random speed

ICSE VII Physics Physical Quantities and Measurement

What is scalar and I can't understand the difference between velocity ratio and speed  

CBSE X Physics Light - Reflection and Refraction

question no. 15

JEE Main Physics Kinematics

Pls answer this??

ICSE X Physics Work, Energy and Power

A BULLET OF MASS 5g TRAVELS WITH A SPEED OF 500ms-1. IF IT PENETRATES A FIXED TRAGET WHICH OFFERS RESISTIVE FORCE OF 1000 N TO THE MOTION OF BULLET FIND THE SPEED WITH WHICH THE BULLET EMERGES OUT OF TARGET IF TARGET IS OF THICKNESS 0.5m

CBSE XI Science Physics Motion in a Straight Line

Pls answer this!!

ICSE VII Physics Motion

The two persons going in same speed then what say

ICSE VII Physics Physical Quantities and Measurement

how can you find the speed of body

ICSE VII Physics

What is speed?

ICSE VII Physics Physical Quantities and Measurement

Define speed Define heavier object  

ICSE VII Physics Physical Quantities and Measurement

Write the formula and units of speed  

ICSE VII Physics Physical Quantities and Measurement

What are the unit of speed    

ICSE VII Physics Physical Quantities and Measurement

What is definition of speed

ICSE VII Physics Motion

What is speed 

ICSE VII Physics

Define speed   

ICSE IX Physics Motion in One Dimension

Differentiate between speed and velocity ? And what is acceleration?   

ICSE VII Physics Physical Quantities and Measurement

How can you find the speed of body?

ICSE VII Maths Speed, Distance and Time

How to find speed when time and distance is given  Distance=34km/hr , Time=54hr

CBSE X Maths Quadratic Equations

A fast train takes 3 hours less than a slow train for a journey of 600 km. If the speed of slow train is 10 km / hr less than that of the fast train, find the speeds of the two trains. 

ICSE VII Physics Physical Quantities and Measurement

How we can find the density of the speed of body

ICSE VII Physics Physical Quantities and Measurement

IN PHYSICS CHAPTER 1 PHYSICAL QUANTITIES AND MESURMENT IN MESURMENT OF DENSITY AND SPEED REST AND SLOW HOW ARE CONNECTED TO EACH OTHER AND MOTION AND FAST ARE HOW CONNECTED EACH OTHER

CBSE IX Physics Motion

Rama takes a round of a circular Park whose diameter is 280 metre in 4 minutes what is the distance covered by Rama what is the speed of Rama

NEET NEET Physics

Plz do this question

ICSE VI Maths

A boy swims 200 m in still water and then returns back to the staring point in 10 mintues . Find the speed of the boy .

ICSE VII Maths Speed, Distance and Time

1. A train travels between two stations X and Y , a distance of 120 km and 80 minutes. It passes to a station Z , 1 hour after leaving X , what is the distance between Y and Z.

ICSE VI Maths

Mohit covers a distance in 5 hours by his car at the speed of 15 m/sec . Find the total distance covered by Mohit .

ICSE VII Maths Speed, Distance and Time

A train 260 m long running at 72 km/h, crosses a bridge 240 m long. Find the time taken by it.

ICSE VII Maths Speed, Distance and Time

a car started from town P and travelled towards town Q at speed of 70km/hr at the same time a van started from town Q and travelled towards town P at speed of town Q town Q towns town

ICSE VII Maths Speed, Distance and Time

72 km/hr to m/s

CBSE IX Physics Motion

a body travels along a circular path of radius 70 me after travelling half a revolution in 20 seconds find the average speed and average velocity

ICSE VII Maths Speed, Distance and Time

Mohan travels in an aeroplane at a distance of 1200 km for the first half of the distance the plane flies at a speed of 900 km per hour and to the rest of the distance is flies at a speed of 750 kilometre per hour how long does the Trip take

ICSE IX Physics Motion in One Dimension

What are the physical quantity of motion under scalar and vector quantity with their MKS and CGS units

ICSE IX Physics Motion in One Dimension

a car is travel

CBSE X Maths

A train, travelling at a uniform speed for 360 km, would have taken 48 minutes less to travel the same distance if its speed were 5 km/h more. Find the original speed of the train.  

CBSE XI Science Physics

find time of flight

ICSE VII Maths Speed, Distance and Time

How can I convert 1.5m/s to km/h ?  

ICSE VII Maths Linear Equations in One Variable

Question is in the picture

CBSE XI Science Physics

What is the relationship between speed and velocity    

CBSE VII Science Motion and Time

what is speed and velocity

ICSE VII Maths Speed, Distance and Time

A child cycles at a speed of 4 m/s how much distance will he cover in 2 minutes 

CBSE IX Physics Motion

A cyclist covers a distance of 50 m in 10 s. Calculate the speed of the cyclist in I m/s (ii) km/h

JEE Main Physics Kinematics

A ball is dropped from the top of a building. The ball takes 0.5s to fall past the 3m height of a window some distance from the top of the building.If the speed of the ball at the top and at the bottom of the window are V and U respectively then(g=9.8m/s*2)  V+U=12m/s V-U=9.8m/s VU=1m/s V/U=1m/s

ICSE IX Physics Motion in One Dimension

Why are we multiplying 90km/h by 5/18 ?  

ICSE VII Physics Sound

What is speed.S.I unit

CBSE XI Science Physics Units and Measurement

An object covers (16.0+- 0.4)m distance in (4.0+- 0.2)s . Find out its speed  

CBSE XI Science Physics Motion in a Straight Line

A diwali rocket moves vertically with constant acceleration of 5 ms–2. After some time its fuel exhausted and then it falls freely. If maximum height attained by the rocket is 60m. Then find its speeds when the fuel is just exhausted. (g = 10ms–2)

ICSE VII Physics Physical Quantities and Measurement

Definition of spped

JEE Main Physics Rotational Motion

Physics

ICSE VII Physics Motion

a man walks a distance of 50m in 1 minute and another 50m in 1.5min is the motion  non uniform also,find his average speed in m/s

CBSE XI Science Physics Motion in a Straight Line

two ball of mass 50 g and 100 g bare dropped form same building .what is the ratio of their speeds on reaching ground

CBSE XI Science Physics Motion in a Straight Line

what is numerical ratio between velocity and speed

ICSE VII Maths Speed, Distance and Time

(1) A 110-m-long train travels at 30 km/h. How long will it take to cross a 90 m long?

CBSE X Physics Light - Reflection and Refraction

how can you  find  the speed of the scooter that approches the mirror  

CBSE VII Science Motion and Time

A vehicle has the speed of 40 km/h. What does this mean?

CBSE VII Science Motion and Time

A bus covers 100 km in 4 hours and returns back to the initial place in 5 hours. Calculate the average speed.

CBSE VIII Science

Give a example of a real time scenario the difference between Speed and acceleration

CBSE X Physics Magnetic Effects of Electric Current

speed=

ICSE VII Physics Physical Quantities and Measurement

what is the formula of speed

NEET NEET Physics Kinematics

explain

CBSE VII Science Motion and Time

a car is moving at a speed of 60km/h for 15 minutes , next 15 minutes it is moving at a speed of 40km/h . how much distance it will move in these 30 minutes?

CBSE XI Science Physics Gravitation

Please give answer

CBSE XI Science Physics Gravitation

4 identicle bodies of mass m are located at vertices of square of side l they revolve under the effect of mutual gravitational force in circle circumscribing the square then the speed of each body will be

CBSE VI Maths

Anny walked at a speed of 10m per min How much time will he take to cover a distance of 1km 500m

CBSE XI Science Physics System of Particles and Rotational Motion

please answer

JEE Main Physics Thermodynamics

In figure, a resistance coil, wired to an external battery is placed inside a thermally insulated cylinder find with a frictionless piston and containing an ideal diatomic gas A current = 200 ma exists in the coil which has a resistance R=350Ω If the pressure of the gas remains constant what should be the speed v (in cm/s of the piston of mass m=10kg)?

ICSE VII Physics Motion

Convert 54 km/hr into m/s

NEET NEET Physics Kinematics

a boat having a speed of 5km/hr . in still water crossing a river of width 1km long the shortest possible paths in 15 min the speed of the river in km/ hr

NEET NEET Physics Kinematics

how to solve this

JEE Main Physics Rotational Motion

the length of minute hand in a pendulum clock is 10cm the speed of the tip of hand is

ICSE VII Physics Motion

If a boy crosses a road distancing 600m in 5 minutes what will be the boys average speed? 

CBSE XII Science Physics

Two rings each of mass M-100 gm are constrained to move along a fixed horizontal rod An ideal string is connected with rings and block of mass M, = 200 gm is connected to the mid point of string At a certain moment the mass m is moving downward with velocity √3 m/s. Find the speed of ring of M at the moment: M 2m 2m M 30° 30° Molvo = √3 m/s

CBSE VII Science Motion and Time

give answer

ICSE VII Maths Speed, Distance and Time

A train covers a distance of 670 km in 6 h 5 min. If it covers the first 390 km of the journey at 90 km/h, find its speed for the whole journey

NEET NEET Physics Work, Energy and Power

solve this

JEE Main Physics Properties of Solids and Liquids

water flows through a horizontal pipe of radius r ATS speed if the radius of the pipe is double then a speed of your flow of water under similar condition is

CBSE IX Physics Motion

  Arrange the following speeds in increasing order(keeping the least speed first): (i) An athlete running with a speed of 10m/s. (ii) An bicycle moving with a speed of 200m/min. (iii) An scooter moving with a speed of 30km/h

CBSE XI Science Physics

Calculate the speed of the fastest electron emitted by a tungsten surface { work function 4.5 eV }when it is irradiated with light of energy 5.8 eV. (given mass of electron 9.1 x 10 kg)

CBSE IX Physics Work and Energy

An object of mass 1kg is falling from the height h=10m.calculate a) the total energy of an object at h=10m b) potential energy of the object when it is at h=4m c) kinetic energy of the object when it is at h=4m d) what will be the speed of the object when it hits the ground

ICSE X Science

Everyone blinks. The lids move to close the eyes for a ii moment and move back to open them. If the radius of the eyeball is about 1 cm and the eyelids move about double of the radius of the eyeball. Estimate the speed with which we blink our eyes, if the time for 50 blinks is 16% seconds.

JEE Main Physics Oscillations and Waves

give me solution

NEET NEET Physics Kinematics

A car moves a distence of 200 it covers the half of the distence at speed 40 km/h and the second half of distence at speed v the average speed is 48km/h the value of v is