Monday
December 22, 2014

Homework Help: physics

Posted by bird on Wednesday, January 19, 2011 at 9:39pm.

A crank .25m long turns a shaft with a diameter of 3cm around which part of a rope is wound. One end of the rope hangs free and supports a weight of 4200nt. (a) What torque does the weight exert on the shaft? (b) WHat torque must be exerted on the crank to keep the system in equilibrium? (c) What force must be exerted to turn the crank?

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