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a) In raising a 4800 N piano with a pulley system, the workers note that for every 2 m of rope pulled down, the piano rises 0.3 m. Ideally, how much force is required to lift the piano?

(b) If the workers actually pull with 2500 N of force to lift the piano, what is the efficiency of the pulley system?
%

MechanicalA= 2/.3

Force= 4800/MechA

Actual force*(efficiency)= forceneededabove

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