SAT Subject Physics Practice Question 407: Answer and Explanation

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Question: 407

13. An Olympic diver performs a 3.5 somersault. During his dive he uses the tuck position so that he will have

A. larger angular momentum.
B. smaller angular momentum.
C. larger rotational rate.
D. smaller rotational rate.
E. longer time in the air.

Correct Answer: C


The correct answer is (C). The diver needs to complete the rotations as quickly as possible. The tuck position reduces the moment of inertia of the diver's body, allowing the diver to spin at a higher rate.

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