Question

A simple machine with an efficiency of 75% lift a load of 5000N. When a Force of 500N is applied to it, Calculate the velocity of ratio of the machine

Answer 1

The mechanical advantage

$M.A.=\frac{L}{E}=\frac{5000}{500}=10$

The velocity ratio

$V.R.=\frac{M.A.}{\eta}=\frac{10}{0.75}=13.3$