Use the following formula to calculate mechanical advantage. To lift a load, you apply 40.0 N of force to a lever. The lever applies 180 N of force to the load. What is the mechanical advantage of the lever?

mechanical advantage = output force/input force

1 answer

To calculate the mechanical advantage (MA) of the lever, you can use the formula:

\[ \text{mechanical advantage (MA)} = \frac{\text{output force}}{\text{input force}} \]

In your case:

  • The output force (force applied to the load) is 180 N.
  • The input force (force you apply to the lever) is 40.0 N.

Now, substitute the values into the formula:

\[ \text{MA} = \frac{180 , \text{N}}{40.0 , \text{N}} = 4.5 \]

Therefore, the mechanical advantage of the lever is 4.5.