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A Thin Circular Hoop of Mass 1

Question 5

Multiple Choice

A thin circular hoop of mass 1.0 kg and radius 2.0 m is rotating about an axis through its center and perpendicular to its plane. It is slowing down at the rate of 7.0 rad/s2. The net torque acting on it is:


A) 7.0 N. m
B) 14.0 N . m
C) 28.0 N . m
D) 44.0 N . m
E) none of these

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