A box is lowered by a rope at a constant speed if its mass

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Problem 1: A box is lowered by a rope at a constant speed. If its mass is 20 lb, its downward speed is 3 ft/s, and the vertical distance of travel is 25 ft, what is the work done by the rope on the box?

problem 2: A box is lowered by a rope at a constant acceleration. If its mass is 45 lb, its downward acceleration is 2.8 ft/s2, and the vertical distance of travel is 22 ft, what is the work done by the rope on the box?

Reference no: EM13618401

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