A boy uses a single fixed pulley to lift a load of 50 Kgf to some height

A boy uses a single fixed pulley to lift a load of 50 Kgf to some height. Another boy uses a single movable pulley to lift the same load to the same height. Compare the effort applied by them. Give a reason to support your answer.

Answer

Effort applied will be in the ratio 2:1 as M.A. of single fixed pulley is 1 whereas M.A. of single movable pulley is 2.

• Exam Year: 2017