ReasoningModerate1 mark
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.
Topic: Machines, levers and pulleys
Previous-year question practice database
Answer
Exam answer
Fixed-pulley effort : movable-pulley effort = 2 : 1.
Explanation
Ideal MA values are 1 and 2 respectively.
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