If a spinning skater pulled his arms toward his body, the angular momentum would remain the same.

Name: If a spinning skater pulled his arms toward his body, the angular momentum would remain the same.
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Question

Quizplus · Accepted Answer

When a skater pulls their arms in, they reduce their moment of inertia, but since angular momentum is conserved in the absence of external torques, their angular velocity increases to keep the product of the moment of inertia and angular velocity (angular momentum) constant.

If a Spinning Skater Pulled His Arms Toward His Body