Question

A lever used to lift a heavy box has an input arm of 4 meters and an output arm of 0.8 meters. What is the MA of the lever?

Answer 1

Mechanical advantage = 5

Step-by-step explanation:

Given the following data;

Length of input arm = 4 meters.

Length of output arm = 0.8 meters.

To find the mechanical advantage;

`Mechanical \; advantage = \frac {Length \; of \; 1nput \; arm}{Length \; of \; 0utput \; arm}`

Substituting into the formula, we have;

`Mechanical \; advantage = \frac {4}{0.8}`

Mechanical advantage = 5