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A man spinning in free space can change ...

A man spinning in free space can change the moment of inrtia of his body (I) by charging its shape. In this process,

A

he will have to expend some energy to increases I

B

he will have to expend some energy to decreases I

C

he does not have to expend any energy to change I

D

either (a) or (b) depending on the intial value of I

Text Solution

Verified by Experts

The correct Answer is:
b
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