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A machine raises a load of 600N through a height of 1.5m when an effort of 100N moves a total distance of 20m.(a) calculate the work done in raising the load.(b) what is the mechanical advantage of the machine?(c) calculate the efficiency of the machine.

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  1. a) Fd = 600*1.5
    b) 6:1
    c) Fd ideal/Fd actual

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  2. 600* 1.5 =900 /200 =4.5 *100 =450

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