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At any instant, a rolling body may be co...

At any instant, a rolling body may be considered to be in pure rotation about an axis through the point of contact. This axis is translating forward with speed

A

zero

B

data is insufficient

C

twice that of the centre of mass

D

equal to that of the centre of mass

Text Solution

Verified by Experts

The correct Answer is:
D
In this case, the instantaneous axis of rotation, is always below the centre of mass. For this to happen, the point of contact must move with a velocity equal to the velocity of the centre of mass.
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