A student rotates on a frictionless pianostool with his arms outstretched, a heavy weight in each hand.Suddenly he lets go of the weights, and they fall to the floor. Asa result, does the student’s angular speed increase, decrease, orstay the same? (b) Choose the best explanation from among thefollowing:I. The loss of angular momentum when the weights are droppedcauses the student to rotate more slowly.II. The student’s moment of inertia is decreased by dropping theweights.III. Dropping the weights exerts no torque on the student, but thefloor exerts a torque on the weights when they land

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.