Bounded Rotational Oscillation
A uniform disk, initially at rest, is subjected to a time-varying torque described by the equation . Under which of the following conditions will the disk’s angular velocity oscillate with a bounded amplitude instead of increasing indefinitely?
A
A torque opposing motion that is proportional to angular velocity acts
B
The initial torque amplitude is very small
C
The frequency of applied torque matches the disk’s natural frequency
D
The disk’s moment of inertia increases and decreases with time
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