Mechanical Advantage
The factor by which a simple machine multiplies input effort force to overcome load resistance.
Governing formula
MA = F_output / F_input
SI unit
Dimensionless
In depth
Mechanical advantage trades input distance for force multiplication (F_out d_out ≤ F_in d_in).
Examples in the real world
A crowbar providing a mechanical advantage of 10, allowing a 100 N effort force to lift a 1000 N boulder.