Question #115341

A wheel and axle have radii 80cm and 10cm respectively, if the efficiency of the machine is 0.85, what load will an applied force of 1200N to the wheel raise?

Expert's answer

Given

efficiency is e=85

Applied force is F=1200 N

"Efficiency =(M A\/V.R)*100"

Here M A is mechanical advantage

V.R= velocity ratio = 80/10

So,.

Efficiency =(M A/V.R)*100

85 = (Load/1200)*(10/80)*100

Load = 8160 N

Hence, the load is **8160 N**

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