A pulley system with VR = 4 is used to lift a load of 175 kgf

A pulley system with VR = 4 is used to lift a load of 175 kgf through a vertical height of 15 m. The effort required is 50 kgf in the downward direction. (g = 10 N kg^-1) Calculate:

1. Distance moved by the effort.
2. Work done by the effort.
3. M.A. of the pulley system.
4. Efficiency of the pulley system.

Answer