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A labourer raises a load of mass 120kg by using a system of pulley. He...

A labourer raises a load of mass 120kg by using a system of pulley. He exerts a force of 400N on the rope.
Calculate:
(1) the velocity ratio
(2) mechanical advantage and
(3) the efficiency of the system.?
In Physics
9 Answers Available
Asked by Mary on 27th April, 2020
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