150N raised by a system of 3 pulleys on the application of force 50N, what is the efficiency ?
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Given:
Velocity ratio = Number of pulleys () =
Effort raised = N
Load = N
To find:
The efficiency of the pulleys
Formula used:
Mechanical advantage =
Efficiency = × %
Step-by-step explanation:
Mechanical advantage = =
Efficiency = = × % = %
Answer:
The efficiency of the pulley is %
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