How much work was done lifting the sand this far

Reference no: EM13203817

A bag of sand originally weighing 136lb was lifted at a constant rate. As it rose, sand also leaked out at a constant rate. The sand was half gone by the time the bag had been lifted to 17 ft. How much work was done lifting the sand this far? (Neglect the weight of the bag and lifting equipment.)

Reference no: EM13203817

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