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AP® Physics 1 & 2

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Rotating Turntable

APPH12-4WWHD2

Consider a turntable (think playground merry-go-round) rotating at a constant angular velocity. Assume the mass is uniformly spread through the disk of the turntable.

As the turntable rotates it starts to snow. The snow spreads evenly across the disk of the turntable.

Which of the following is TRUE?

A

The angular momentum remains constant and the angular velocity increases.

B

The angular momentum increases and the angular velocity decreases.

C

The angular momentum increases and the angular velocity increases.

D

The angular momentum remains constant and the angular velocity decreases.