Question on: JAMB Physics - 2018
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?
A
36.0
B
7.2
C
5.0
D
3.6
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Correct Option: D
Mechanical Advantage, M.A Velocity Ration (V.R) × Efficiency
Hence,M.A = 5 × 0.72
M.A = 3.6
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