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Question:

An 8-hp crane lifts a 100 kg junk metal over a period of 15 secondsTo what distance was the load lifted?

please help me solvei really don't get itttt

Answer:

1 horse power 746 wattSo the work W done by the crane in 15 s is given by W 874615 J So the distance, S through which the crane lifted 100 kg, presumably at constant speed is given by 1009.81S 874615 or S [(874615)/(1009.81)] 91.25 m
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