Resultant Force

Resultant Force problem 24

Victor wants to lift a block of mass 120 kg using a pulley. The pulley has a fixed part with two wheels and a moving part with one wheel. A tow rope is passed through all three wheels, as shown in the figure. He hangs the load on the moving part of the pulley. What force does Victor apply on the free part of the rope to keep the load in the air at rest? The moving part of the pulley has a negligible mass.


material editor: Gabriel Amakhabi