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Question

A solid sphere of radius R and mass M is pulled by a force F acting at the top of the sphere as shown in figure. Friction coefficient is sufficient enough to provide rolling without slipping. (Given that ‘S’ being the displacement of centre of mass)


Your Answer
A
Work done by force is FS.
Your Answer
B
Work done by force is 2FS.
Correct Answer
C
Velocity of top point is equal to velocity of point of contact.
Correct Answer
D
Velocity of top point is two times velocity of centre of mass.

Solution

The correct options are
C Velocity of top point is equal to velocity of point of contact.
D Velocity of top point is two times velocity of centre of mass.
The topmost point has double velocity than centre, so work on it is F(2S)

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