Consider the self-propelled elevator shown here. The elevator is operated by its

Question

Consider the self-propelled elevator shown here. The elevator is operated by its occupant using a 6" diameter drum winch which has a 12" long handle (measured from the center of the drum). The total weight of the elevator plus occupant is 370 pounds and the coefficient of friction between the cable material and the pulley material is 0.11. If the upper (12" diameter) fixed pulley is free to rotate, what is the force (in pounds) required at the winch handle to raise the elevator? https://s3.amazonaws.com/answer-board-image/f6383a77-447c-4350-9db9-f5298512737f.bmp

Explanation / Answer

151.75 pounds

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