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Earlier discussion
2 older comments kept for context.
Hakym K
Efficiency = (Mechanical advantage / Velocity ratio) x 100
Mechanical advantage = Load/Effort = 600/300 = 2
Velocity ratio = Radius of wheel/Radius of axle = 50/10 = 5
Efficiency = (2/5) x 100 = 40%
Hakym K
Efficiency = \( \frac{\text{Mechanical advantage}}{\text{Velocity ratio}} \times 100 \)
Velocity ratio = Radius of wheel / Radius of axel = 50/10 = 5
Mechanical advantage = Load / Effort = 600/300 = 2
Efficiency = \( \frac{2}{5} \times 100 = 40 \)