A 5 lbs hammer is lying at the bottom of an empty well that
A 5 lbs hammer is lying at the bottom of an empty well that is 16 ft deep. A rope weighing 1/16lb/ft is used to lift the hammer to the surface. How much work is done? (ans: 88 ft-lb)
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a 5 lbs hammer is lying at the bottom of an empty well that is 16 ft deep a rope weighing 116lbft is used to lift the
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