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A Pulley System Has Three Pulleys In The Fixed Block And Two In The Movable Block And If The Pulley Has An Efficiency Of 72%; The Mechanical Advantage Of The System Is? - Erudites Academy

A pulley system has three pulleys in the fixed block and two in the movable block and if the pulley has an efficiency of 72%; the mechanical advantage of the system is?

by | Nov 1 | Physics JAMB | 0 comments

A. 36.0
B. 7.2
C. 5.0
D. 3.6

Correct Answer:

Option D – 3.6

Explanation

Mechanical Advantage = V.R × Efficiency

= 5 × 0.72

= 3.6

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