Asked by Adriana

A man uses a pulley arrangement to lift a heavy crate.He applies a force that is one-fourth the weight of the crate, but moves the rope a distance four times the height that the create is lifted. Is the work done by the man greater than, equal to, or less than the work done by the rope on the crate? Explain.
Answered by bobpursley
work done by man: 4h*1/4 Weigh=wh work

work done on crate: weight*h=wh
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