Question

A pulley system has a velocity ratio of 4 and an efficiency of 90%. Calculate its mechanical advantage.

Answer 1

Given:

Velocity Ratio (VR) = 4

Efficiency (η) = 90% = `90/100` = 0.9

Formula:

Mechanical Advantage (MA) = Efficiency (η) × Velocity Ratio (VR)

= 0.9 × 4

= 3.6

The mechanical advantage of the pulley system is 3.6.