Mechanical advantage (MA): Choose the correct definition For a lifting machine, mechanical advantage is defined as which of the following ratios? Select the correct option.

Given data
We must identify the correct definition of MA.

Concept/Approach
Mechanical advantage (MA) = Load / Effort.Velocity ratio (VR) = Distance moved by effort / Distance moved by load.Efficiency = Output / Input (often MA / VR for idealized machines).

Step-by-step
Only option (B) matches MA = Load ÷ Effort.

Common pitfalls
Confusing MA with VR (option A) or efficiency (option C). Option D is therefore incorrect.

Final Answer
load lifted ÷ effort applied