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A man spinning in free space can change ...

A man spinning in free space can change the moment of inertia I of his body by changing its shape. In this?

A

he will to expend some energy to increase I

B

he will have to expend some energy to decrease I

C

he does not have to expend to expend any energy to change I

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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