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AP® Physics 1 & 2

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External Torque on Wheel

APPH12-5QARVX

Consider a bicycle wheel in which two external torques act. One acts in the clockwise direction and the other acts in the counter-clockwise direction. The torques are equal in magnitude.

Which of the following statements is possibly TRUE?

A

The angular momentum of the bicycle wheel is zero.

B

The angular momentum of the bicycle wheel is increasing.

C

The angular momentum of the bicycle wheel is decreasing.

D

The angular momentum of the bicycle wheel is non-zero and constant.