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A flat disk is spinning about a rotational axis perpendicular to the disk and through the center of mass.

Suddenly an outer hoop is added that doubles both the mass and radius. No net torque is provided.

Created for Albert.io. Copyright 2016. All rights reserved.

Which of the following values for the angular velocity is most consistent with this change?

A

The angular velocity is also doubled.

B

The angular velocity is one-half the original.

C

The angular velocity is one-quarter the original.

D

The angular velocity is one-eighth the original.

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