What is the formula for mechanical advantage?

Question

MA = force output * force input

Ma = force output + force input

MA = force input / force output

MA = force output / force input

Answer 1

The correct formula for mechanical advantage (MA) is:

MA = force output / force input

This formula indicates how much a machine amplifies an input force to produce an output force. A mechanical advantage greater than 1 means that the machine is multiplying the input force.