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Question: Answered & Verified by Expert
A person sitting firmly over a rotating stool has his arms stretched. If he folds his arms, his angular momentum about the axis of the rotation
PhysicsRotational MotionCOMEDKCOMEDK 2015
Options:
  • A increases
  • B decreases
  • C remains unchanged
  • D doubles
Solution:
1728 Upvotes Verified Answer
The correct answer is: remains unchanged
According to conservation of angular momentum, when no external torque is applied on the rotating system, then its angular momentum remains unchanged.

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