A weight lifter lifts a 420 n set of weights from ground
A weight lifter lifts a 420 N set of weights from ground level to a position over his head, a vertical distance of 1.70 m. How much work does the weight lifter do, assuming he moves the weights at constant speed?
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a weight lifter lifts a 420 n set of weights from ground level to a position over his head a vertical distance of 170 m
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