A simple machine with an efficiency of 75% lifts a load o...
A simple machine with an efficiency of 75% lifts a load of 5000N when a force of 500N is applied to it. Calculate the velocity ratio of the machine
10.0
13.3
17.5
25.0
Correct answer is B
M.A = loadeffort5000N500N=10
V.R = M.A×100V=10×10075=13.3
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