A thin light string is wrapped around the outer rim of a uniform hollow cylinder of mass 4.75 kgkg having inner and outer radii as shown in the figure (Figure 1). The cylinder is then released from rest. a.) How far must the cylinder fall before its center is moving at 6.78 m/sm/s? Express your answer in meters. b.) If you just dropped this cylinder without any string, how fast would its center be moving when it had fallen the distance in part A? Express your answer in meters per second.

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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.