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If a person sitting on a rotating stool ...

If a person sitting on a rotating stool with his hands outstretched, suddenly lowers his hands, then his

A

Kinetic energy will decrease

B

Moment of inertia will decrease

C

Angular momentum will increase

D

Angular velocity will remain constant

Text Solution

Verified by Experts

The correct Answer is:
B
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  14. A uniform rod AB of mass m and length l is at rest on a smooth horizon...

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  16. Two particles of equal mass m at A and B are connected by a rigid ligh...

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  18. A triangular block ABC of mass m and side 2a lies on a smooth horizont...

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  19. A recording disc rotates steadily at n(1) rps on a table. When a small...

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