Sat November 12, 2011 By: Thomas Albin

If the net torque acting on a rigid object is non zero, why will it not rotate with a non uniform angular velocity..?

Expert Reply
Mon November 14, 2011
The non-zero torue causes the angular acceleration and body does not rotate with uniform velocity.
The angular acceleration is caused by the torque, which can have a positive or negative value in accordance with the convention of positive and negative angular frequency. The ratio of torque and angular acceleration (how difficult it is to start, stop, or otherwise change rotation) is given by the moment of inertia: T = Ia.
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