CBSE XI Science Physics
A uniform steel rod of 1 m in length is bent in a 90 degree angle at its mid point. Determine the position of centre of mass from the corners at bent.
A uniform steel rod of 1 m in length is bent in a 90 degree angle at its mid point. Determine the position of centre of mass from the corners at bent.
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25th October 2017
8:56 PM
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JEE Plances ALL Class Physics Rotational Mechanics
A rope of length 30 cm is on a horizontal table
with maximum length hanging from edge A of
the table. The coefficient of friction between the rope and the table is 0.5 .The dist of C.M from the A is??
A rope of length 30 cm is on a horizontal table
with maximum length hanging from edge A of
the table. The coefficient of friction between the rope and the table is 0.5 .The dist of C.M from the A is??
Asked by chandanbr6004
11th November 2017
3:52 AM
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JEE Plances JEE (Main) Physics Sound Waves
ques2
ques2
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27th December 2017
11:28 PM
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JEE Plances JEE (Main) Physics
define cemtre of mass of a body. find out an expression for position vector of centre of mass of a two particle system.
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3rd March 2018
7:48 PM
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CBSE XII Science Physics
Sir Question attached
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26th May 2018
2:53 PM
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ICSE X Physics Force
Why does centre of gravity of a ring lies outside?
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2nd June 2018
2:27 PM
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NEET1 NEET1 Physics
A circular plate of uniform thickness has a diameter of 56 cm. A circular portion of diameter 42 cm is removed from one edge of the plate. Find the position of the centre of mass of the remaining portion.
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7th June 2018
10:27 AM
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JEE Plances JEE (Main) Physics
Sir Pl solve question no-23
Asked by shobhit
23rd June 2018
12:03 AM
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JEE Plances JEE (Main) Physics
The co ordinates of centre of mass of mass of paricle of mass 10,20,30gm are (1,1,1)cm.The position co ordinates of mass 40 gm which when added to the system,the position of combined centre of mass be at(0,0,0) are,
Asked by gantasasidharreddy
20th August 2018
9:50 PM
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JEE Plances JEE (Main) Physics
X and Y components of acceleration of C.M are
Asked by m.nilu
12th September 2018
7:21 PM
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JEE Plances JEE (Main) Physics
Two blocks A and B are connected by a massless string .A force of 30N is applied on block B.The distance travelled by centre of mass in 2s starting from rest is
Asked by m.nilu
12th September 2018
7:40 PM
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JEE Plances JEE (Main) Physics
The velocity of centre of mass of the system as shown in the fig
Asked by m.nilu
16th September 2018
10:22 PM
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JEE Plances JEE (Main) Physics
The fig shows the position and velocities of two particles.If the particles move under the mutual attraction of each other, then the position of centre of mass at t=1s is
Asked by m.nilu
17th September 2018
7:34 PM
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JEE Plances JEE (Main) Physics
A small sphere of radius R is held against the inner surface of a larger sphere of radius 6R.The masses of large and small spheres are 4M and M respec.This arrangement is placed on a horizontal table.There is no friction bet any surfaces of contact.The small sphere is now released.Find the coordinates of the centre of the larger sphere when the smaller sphere reaches the other extreme position.
Asked by m.nilu
21st September 2018
6:13 PM
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JEE Plances JEE (Main) Physics
A particle of mass 2kg moving with a velocity 5i m/s collides head on with another particle of mass 3kg moving with a velocity -2i m/s .After the collision the first particle has speed of 1.6m/s in negative x direction.Find velocity of the centre of mass after the collision, velocity of the second particle after the collision ,coefficient of restitution.
Asked by m.nilu
28th September 2018
8:44 PM
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CBSE XI Science Physics
A ball of mass 1 kg is suspended by an inextensible string 1 m long attached to a point O of a smooth horizontal bar resting on fixed smooth supports A and B. The ball is released from rest from the position when the string makes an angle 30° with the vertical. The mass of the bar is 4 kg. The displacement of bar when ball reaches the other extreme position is
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13th October 2018
9:30 AM
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NEET1 NEET1 Physics
Centre of mass of system of two particles in 3D
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21st October 2018
10:39 AM
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CBSE XI Science Physics
A boy of mass 25kg is standing on a stationary boat of mass 75kg. If the boy walks along the length of the boat at a speed of 1ms-1 with respect to the boat, find the velocity of the boat with respect to water. (Neglect friction from water on the boat)
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29th October 2018
6:06 PM
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CBSE XI Science Physics
Four identical spheres of mass M are placed at the corners of a side 2 metre taking the point of intersection of the diagonals the original coordinates of the centre of mass
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16th December 2018
11:24 PM
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CBSE XI Science Physics
kindly answer
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19th December 2018
10:52 PM
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CBSE XI Science Physics
kindly answer
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19th December 2018
10:53 PM
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CBSE XI Science Physics
kindly answer
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19th December 2018
10:54 PM
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CBSE XI Science Physics
kindly answer
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19th December 2018
10:55 PM
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JEE Main Physics Rotational Motion
an isolated particle of mass m moving in horizontal plane [x-y] along the x axis at a certain height above the ground . it suddenly explodes into fragments of masses m/4 and 3m/4 . an instant later smaller fragment is at y=15 cm . the larger fragment at this instant is at
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2nd January 2019
12:20 PM
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NEET NEET Physics
Two identical particles move towards each other with velocity 2v and v respectively. The velocity of center of mass
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8th January 2019
9:25 PM
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CBSE XI Science Physics System of Particles and Rotational Motion
what is centre of mass??
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26th January 2019
1:34 PM
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NEET NEET Physics Rotational Motion
Why is it L/2?
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25th March 2019
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CBSE XII Science Physics
A wedg ewith mass M rests on a frictionless horizontal tabletop . A block with mass m is placed on the wedge There is no friction between the block and the wedge the system is released from rest . calculate the acceleration of the wedge.
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14th July 2019
11:29 AM
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CBSE IX Physics
Shyam throws a heavy stoneout of his boat as a result the boat moves in the opposte direction , why?
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25th July 2019
3:48 PM
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JEE Main Physics
A rod kept vertically on a smooth horizontal surface at a point p . The rod is slightly tilted and released . Show that path followed by any other point except center of mass is elliptical
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22nd August 2019
10:18 PM
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CBSE XI Science Physics
Two masses m and 3m are suspended from a light frictionless pulley with the help of a massless string.if the system is set free find the acceleration of the centre of mass
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27th September 2019
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JEE Main Physics
What is the centre of mass of sector of the circle. Explain with diagram
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17th October 2019
6:05 AM
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JEE Main Physics
The figure shows a uniform square plate from which four identical squares at the corners will be removed. (a) Where is the center of mass of the plate originally? Where is it after the removal of (b) square 1; (c) squares 1 and 2; (d) squares 1 and 3; (e) squares 1, 2, and 3; (f) all four squares? Explain briefly
Asked by rushabh1234
21st October 2019
9:49 PM
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JEE Main Physics
A man has constructed a toy as shown in fig. If the density of the material of the sphere is 12 times that of the cone then determine the position of the centre of mass. [Centre of mass of a cone of height h is at height of h4 from its base.]
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21st October 2019
10:03 PM
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JEE Main Physics
What is the centre of mass of pyramid? Explain briefly with examples
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What is the centre of mass of parabolic spandral ? Explain briefly with diagram
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What is the centre of mass of parabolic area
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23rd October 2019
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What is the centre of mass of arc of semicircle and arc of circle?explain briefly with diagram
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24th October 2019
1:52 PM
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JEE Main Physics
Two block A and B each of mass 2kg is connected through an ideal soring of constant 100n/m .and placed on smooth surface .the spring is streched by 2cm and the system is released from rest .the speed of centre of mass of system when both block have same speed
Asked by ashutosharnold1998
20th November 2019
1:36 PM
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JEE Main Physics
If a heavy spring of uniform density and mass m is hung vertically so that it is stretched by gravity under its own weight, where is the center of mass?
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20th November 2019
10:00 PM
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CBSE XII Science Physics
What is the centre of mass of hoop? Explain briefly with diagram
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1st December 2019
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NEET NEET Physics
In the image all four identical spheres having mass'm'are there. Find COM of the system.
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8th December 2019
10:00 PM
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NEET NEET Physics Work, Energy and Power
Find V1 and V2 when the ball reaches the point A.
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11th December 2019
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CBSE VI Science
how does the centre of rolling ball move when there is both circular and rectilinear motion
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20th January 2020
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NEET NEET Physics
⭕ No need to solve complete question... Formula to be applied is Ycm = (M1R1 +M2R2)/M1 + M2 Explain me the value of R2 ( it is given 5R , but i don't know how it came) ⭕Ref Re to attachment ⭕
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30th January 2020
6:19 PM
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NEET NEET Physics
Initially stable two particles X and Y start moving towards each other under mutual attraction.If at one time the velocity of X and Y v and 2v respectively.What will be the centre of mass of the system?
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19th February 2020
11:03 PM
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What is the difference between centre of gravity and the centre of mass
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18th March 2020
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18th April 2020
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WHY IS CENTRE OF MASS OF 2 PARTICLES IS IN BETWEEN THE LINE JOINING 2 OBJECTS?
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25th November 2020
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CBSE XI Science Physics
find the centre for mass for given system of a mass
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1st February 2021
8:51 PM
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CBSE XI Science Physics System of Particles and Rotational Motion
A Uniform Disc of diameter R/2 is put over another uniform disc of radius R of same thickness and Density. The peripheries of the two discs touch each other. The Centre of Mass of the system from centre of the big disc is?
Asked by adipadmakarri
25th September 2021
11:18 AM
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CBSE XI Science Physics System of Particles and Rotational Motion
A Uniform Disc of diameter R/2 is put over another uniform disc of radius R of same thickness and Density. The peripheries of the two discs touch each other. The Centre of Mass of the system from centre of the big disc is? (I asked this question before but the answer was wrong. They took the Radius as R/2 while it is the Diameter)
Asked by adipadmakarri
26th September 2021
6:08 PM
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NEET NEET Physics Rotational Motion
masses 8,2,4,2 kg are placed at the corners A,B,C,D of a square ABCD whose diagonal is 80cm . the distance of COM from A is
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8:54 PM
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JEE Main Physics Kinematics
A tube of mass 2m and radius 'R' is kept on smooth horizontal surface. A small sphere of mass m kept inside tube is imparted velocity v_{0} along y axis as shown in figure. The sphere just fits into the tube. Motion of particle and tube take place in horizontal plane and there is no friction at any contact. Then, speed of particle when it reaches point B is
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Two particles having mass ratio n : 1 are interconnected by a light inextensible string that passes over a smooth pulley. If the system is released, then the acceleration of the centre of mass of the system is
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9th April 2022
10:00 AM
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NEET NEET Physics Kinematics
Two particles having mass ratio n : 1 are interconnected by a light inextensible string that passes over a smooth pulley. If the system is released, then the acceleration of the centre of mass of the system is
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NEET NEET Physics Rotational Motion
upper question
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