Asked by Heeshar

The efficiency of a machine is 75%.if this machine raises a load of 150kg through a vertical height of 20cm, calculate the work done by the labourer g-10m s
Answered by Heeshar
Pls help
Answered by R_scott
(150 kg * 10 m/s^2 * .20 m) / .75 ... Joules
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