Question: A load is to be raised 20 ft by the hoisting system shown. Assuming gear A is initially at rest, accelerates uniformly to a speed

A load is to be raised 20 ft by the hoisting system shown. Assuming gear A is initially at rest, accelerates uniformly to a speed of 120 rpm in 5 s, and then maintains a constant speed of 120 rpm, determine

(a) The number of revolutions executed by gear A in raising the load,

(b) The time required to raise the load.

3 in 15 in. 18 in. Load

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