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define equations of motion

Asked by 1st March 2008 3:25 PM

do we hav to know the derivation of eqn of motions from exam question point of view

Asked by AMOGH 15th March 2008 7:36 PM

another quest. a small steel ball is dropped from a height of 2.5m into glycerin jar. it hits the surface of glycerin with certain velocity and sinks into the bottom by losing its 20% of its velocity at the surface. if the time taken to reach the bottom after it si dropped is 2 sec. and velocity in glycerin is lost at constant rate, then fiind the average velocity of the ball of journey

Asked by vedant sharma 6th October 2014 12:10 PM

A ball thrown vertically upwards with a speed of 9.6m/s from the top of a tower retuns to the earth in 6sec .Find height of the tower.

Asked by JAIBHARGAVA200 14th October 2014 2:19 PM

A lift whose cage is 3 m high is moving up with an acceleration of 2m/s2. A piece of stone is dropped from the top of the cage of the lift when its velocity is 8m/s. if g =10m/s2 then the stone wil reach the floor of the lift after how much time?

Asked by Saptarshi Sen 19th April 2015 2:01 PM

A body is thrown vertically upwards with velocity 'u'. The distance travelled by it in the fifth and sixth seconds are equal. what is the value of 'u'? (Take g=9.8m/s^2)

Asked by Isha Yadav 20th April 2015 6:55 PM

A body thrown vertically upwards from top of a building reaches the foot of the building in 5 sec;but it will take only 2 secif thrown vertically down with the same velocity.Calculate the height of the building.Given g=9.8m/sec^2.

Asked by Benjamin 19th September 2015 5:43 PM

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'.

Asked by bjayanta 4th May 2016 3:58 PM

A rocket is fired upwards from earth's surface such that it creates an acceleration of 20 m/sec ^2 . If after 5 sec its engine is switched off, the maximum height of the rocket from earth's surface will be ?

Asked by Balbir 14th May 2016 4:40 PM

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

Asked by Hrishikesh marathe 13th June 2016 7:11 AM

A particle moving in straight line experience constant acceleration for 20 second after starting from rest. If it travel a distance S1 in the first 10 seconds and distane S2 in the next 10 seconds then find the relation between S1 and S2

Asked by Hrishikesh marathe 13th June 2016 7:35 AM

Sir/mam  Can you please find the derivative dx/dt in the following question no. 8  (i) and  write the steps involved ?

Asked by Varsneya Srinivas 26th June 2016 6:22 PM

A car running at a speed of 72 km/hr is slowed down to 18 km/hr over a distance of 40 m.Calculate :(1) the retardation produced by the brakes.(2)time for which brakes are applied?

Asked by nisha_vini29 3rd July 2017 12:24 PM

a stream 200m broad is running downward at the rate of 1 km/h .a swimmer who can swim at the rate of 2 km/h wishes to reach a point just opposite . along what line should he striker and how long will he taker is crossing ?

Asked by hrushikesh.barik 11th October 2017 8:16 PM

A boy on a cliff 49 m high drops a stone. One second later, he throws a second stone after the first. They both hit the ground at the same time. With what speed he throw the second stone ?

Asked by pratikoke20 31st October 2017 5:58 PM

ques no 9

Asked by chandanbr6004 15th November 2017 9:36 PM

ques no 10

Asked by chandanbr6004 15th November 2017 9:40 PM

Solve this

Asked by venkat 25th December 2017 8:59 PM

Solve this

Asked by venkat 25th December 2017 9:05 PM

A ball is dropped on the floor from a height of 10 metre rebounds to a height of 2.5 M if the ball is in contact with the floor for 0.01 seconds what is the average acceleration during contact

Asked by www.naresh 4th February 2018 7:28 AM

A spacecraft flying in a straight course with velocity of 75 km/s fires its rocket motors for 6.0s. At the end of this time its velocity becomes 120 km/s . Find the distance travelled by the spacecraft in the first 10 s after the motors were started,the motors being in action for only 6.0s

Asked by Adrija 21st February 2018 6:50 PM

The 2 ends of train ,moving with a constant acceleration,pass a certain with velocity u and v .Show that velocity with which the middle point of train passes the same point is root of(usquare +v square)/2

Asked by ajaysekharjs 27th August 2018 11:54 AM

IF A CAR start from rest and TRAVEL WITH CONSTANT acceleration for 10 second.find the ratio of distance in 1st and 2nd second  travel by car?

Asked by er.arunnegi 19th December 2018 7:34 AM

A ball is thrown up with a certain velocity so that it reaches a height h. Find the ratio of times in which it is at h/3.

Asked by devigeetha531 8th January 2019 4:37 PM

Plz answer 12th ques

Asked by lovemaan5500 17th January 2019 6:08 AM

13th sum plz

Asked by lovemaan5500 17th January 2019 6:09 AM

Plz answer 3rd sum

Asked by lovemaan5500 17th January 2019 6:10 AM

Plz answer 4th part of 8th ques

Asked by lovemaan5500 17th January 2019 6:12 AM

eg.  v = 2x ; assume t = 0 ; x = 2 m ; find a(t)?

Asked by kapilkulhari 23rd May 2019 6:56 PM

Kinematic motion

Asked by Vimalraj 12th June 2019 4:19 PM

What is mean by velocity

Asked by rnarke6 22nd June 2019 3:28 PM

What will be the answer for attached question?

Asked by Mamtamohanty77 14th August 2019 11:28 AM

NEET NEET Physics

Asked by brijk456 16th August 2019 9:21 AM

what is SI in motion

Asked by yadubhatia2004 18th August 2019 5:40 PM

A body travels 200cm in the first 2 seconds and 220cm in the next 5seconds.Calculate the velocity at the end of the seventh second from the start​.

Asked by Santosh.kumar0317 27th August 2019 10:50 PM

A ball is thrown vertically words from ground when it is at three fourth of its maximum height its speed is 20 metre per second the speed of throw is

Asked by nikhat0200 28th August 2019 7:19 AM

Prove that if a body is thrown vertically upward the time of ascent is equal to the time of descent

Asked by Godararahul0250 4th September 2019 4:51 PM

How is dx/dt=5?

Asked by kksureshbabu72 22nd September 2019 11:19 AM

CBSE IX Physics Motion

Asked by tvanshbhai 28th December 2019 11:43 AM

NEET NEET Physics Kinematics

Asked by Prashant DIGHE 30th January 2020 10:26 PM

Problems and solutions on kinematics, Horizontal motion

Asked by Srinivastalluri05talluri 19th April 2020 1:33 PM

NEET NEET Physics

Asked by Prashant DIGHE 20th April 2020 10:38 PM

NEET NEET Physics

Asked by Prashant DIGHE 20th April 2020 10:47 PM

NEET NEET Physics

Asked by Prashant DIGHE 20th April 2020 10:48 PM

What is motiob?

Asked by virajtrada1212.6sdatl 23rd April 2020 4:03 PM

what's kinematics

Asked by msouvik852 1st May 2020 7:53 PM

what is acceleration?

Asked by Prateek_arora22 2nd May 2020 3:35 PM

What is momentum

Asked by atharvshah7674.10sdatl 3rd May 2020 4:05 PM

On turning a corner, a motorist rushing at 44 ms-1 find a child on the road ahead. He is currently stops the engine and applies the brakes so as to stop it within 1m of the child. Calculate time required to stop it stops.

Asked by harsh.mangla.2003 4th May 2020 11:10 AM

A car covers 40m in 8.5 s while applying brakes to a final speed of 2.8m/s.  i) What is the initial speed of the car? ii) What is its acceleration?

Asked by sundaramoorthy.md 8th May 2020 10:02 PM

Pls answer the question

Asked by Nakshu2004 13th May 2020 9:21 AM

What is speed?

Asked by sanikabhagwat65.7spicertl 17th May 2020 3:44 PM

a particle starts from rest with constant acceleration, if first distance S is covered in time tthen the time taken to cover the next 2S distance is

Asked by sne271gha 20th May 2020 11:00 PM

an object starting from rest at t= 0 with uniform acceleration cover 6m/s^2 .calculate the average speed in t= 3 to t = 5

Asked by rite2raji 31st May 2020 8:24 PM

The Position -time relation of a moving particle is given as x= 2t2+3t+4 (where x is in m and t is in s) what will be the velocity of the particle at t=1s ?

Asked by debankurmabdal11 20th June 2020 10:00 AM

A car is moving with a velocity of 7m per second it's velocity decreasing at the rate of 2.5 metre per second s square. What

Asked by dishasarma2016 4th July 2020 9:15 AM

The position coordinate  of x =2t³ -24t +6 m. Determine the distance traveled by it from t =1 sec to t=4 sec.

Asked by rakhibhanusharma 5th July 2020 9:29 PM

How to calculate acceleration?

Asked by sgsaurangaba 14th July 2020 4:21 PM

What's different between Rest & motion

Asked by ashishkumarsinghaks199 17th July 2020 7:15 PM

A body travelling with a velocity 30m/s. It is given an acceleration 5m/s2. What will be its velocity afer 4s ?

Asked by harshithaharshakumar66 22nd July 2020 5:55 PM

numerical= 1]a partical initially at rest ,moves with an acceleration 5m/s^2 for 5 secs .find the distance travelled in a)4 secs b)5 secs c)5th second

Asked by vaishalibhosalelic13 24th July 2020 10:27 PM

A particle moves along straight-line OX. At time t(in seconds) the distance x(in metres) from O is given by: x = 40 + 12t - t³. How long the particle travels before coming to rest? a) 16 m b) 21 m c)40 m d)56 m

Asked by Kusum and Sanjeet 8th August 2020 10:47 PM

Please give the answer of the given question...

Asked by Kusum and Sanjeet 8th August 2020 10:54 PM

solve this

Asked by bajpairishabh61 10th August 2020 12:27 AM

the motion of a moving train has been depicted

Asked by Sumaiyyafaruque 11th August 2020 8:27 AM

an object moves in straight line. its instantaneous velocity is negative and its instataneous acceleration is positive

Asked by ky450263 16th August 2020 8:08 PM

The resistance force 16 N acts on a hall of mass 40 kg continuous. If the initial velocity of hall is 24m/s then what time taken by it to come to rest

Asked by satvikagarwal62 17th August 2020 11:07 AM

what do you mean by velocity

Asked by swarnimapost 21st August 2020 12:39 PM

Can direction varry in Constant velocity.It cannot be different in uniform velocity but could it be different in constant velocity?

Asked by abhishekchhikara732 22nd August 2020 4:45 PM

what is uniform speed and non uniform speed

Asked by sheebasheeba32681 7th September 2020 8:21 AM

A train accelerates  uniformly from 36 kilometre per hour to 72 kilometre per hour in 20 second find the distance travelled

Asked by callingchandra111 13th September 2020 8:14 AM