Home
Class 11
PHYSICS
At t = 0, the positions and velocities o...

At `t = 0`, the positions and velocities of two particles are as shown in the figure. They are kept on a smooth surface and being mutually attracted by gravitational force. Find the position of centre of mass at `t = 2s`.
.

A

`X=5m`

B

`X=7m`

C

`X=3m`

D

`X=2m`

Text Solution

Verified by Experts

The correct Answer is:
B
As no external force is acting on the system. The velocity of centre of the mass will be constant.
`v_(CM)=(1x5-1xx3)/(1+1)=1m//s`
Displacement of the centre of mass `/_\x_(CM)=1xx2=2m`
Hence, position of the centre of mass `=5+2=7m`
Promotional Banner

Topper's Solved these Questions

  • MISCELLANEOUS VOLUME 2

    CENGAGE PHYSICS|Exercise MCQ_TYPE|20 Videos

  • MISCELLANEOUS VOLUME 2

    CENGAGE PHYSICS|Exercise LC_TYPE|34 Videos

  • MISCELLANEOUS KINEMATICS

    CENGAGE PHYSICS|Exercise Interger type|3 Videos

  • NEWTON'S LAWS OF MOTION 1

    CENGAGE PHYSICS|Exercise Integer|5 Videos

Similar Questions

Explore conceptually related problems

Position time graph of two particles A and B are as shown in figure. Velocity of A w.r.t. B is

Find the position of centre of mass of the section shown in figure

Find out the position of centre of mass of the figure shown below.

Find out the position of centre of mass of the uniform lamina as shown in figure.

Find the position of centre of mass of the uniform lamina shown in figure.

Find the position of centre of mass of the T-shaped plate from O , in Fig.

The figure shows the positions and velocity of two particle. If the paritcle move under the mutual attraction of each other, then the position of centre of mass at t = 1 s is :-

Figure shows position and velocities of two particles moving under mutual gravitational attraction in space at time t = 0 . The position of centre of mass after one second is '"*"'m . Fill "'*"' .

The object shown in figure is constructed of uniform rods of same material. Find the position of centre of mass w.r.t. its corner O.