Asked by Emmanuel

A machine has velocity ration of 6 and it efficiency is 80%. What effort would be needed to lift a load of 300N with the aid of this machine.
Answered by Bosnian
80% = 80 / 100 = 0.8

80% • effort = 300 N / 6

0.8 • effort = 50 N

effort = 50 N / 0.8 = 62.5 N

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