Physics, 25.07.2019 06:00 rachelacarman

Aman pushes down on a lever with 45 n and the lever moves 1.5 meters. the other end of the lever lifts a 87.6 n box .4 meters. what is the efficiency of the lever?

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Aman pushes down on a lever with 45 n and the lever moves 1.5 meters. the other end of the lever lif...