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A solid homogeneous sphere is moving on ...

A solid homogeneous sphere is moving on a rough horizontal surface, partly rolling and partly sliding. During the king of motion of the sphere.

A

Total kinetic energy is conserved

B

The angular momentum of the sphere about the point of contact with the plane is conserved

C

Only the rotational kinetic energy about the centre of mass is conserved

D

Angular momentum about the centre of mass is conserved

Text Solution

Verified by Experts

The correct Answer is:
B
L= Constant at point of contact
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