Multiple Choice
The magnitude of the acceleration of a point on a spinning wheel is increased by a factor of 4 if:
A) the magnitudes of the angular velocity and the angular acceleration are each multiplied by a factor of 4
B) the magnitude of the angular velocity is multiplied by a factor of 4 and the angular acceleration is not changed
C) the magnitudes of the angular velocity and the angular acceleration are each multiplied by a factor of 2
D) the magnitude of the angular velocity is multiplied by a factor of 2 and the angular acceleration is not changed
E) the magnitude of the angular velocity is multiplied by a factor of 2 and the magnitude of the angular acceleration is multiplied by a factor of 4
Correct Answer:

Verified
Correct Answer:
Verified
Q78: Ten seconds after an electric fan is
Q79: A flywheel rotating at 12 rev/s
Q80: A constant torque of 260 N∙m acts
Q81: The angular velocity of a rotating
Q82: This graph shows the angular velocity of
Q84: Four identical particles, each with mass m,
Q85: A wheel starts from rest and has
Q86: A force is applied to a billiard
Q87: If a wheel turning at a constant
Q88: The angular velocity of a rotating turntable