use the following formula to calculate mechanical advantage. to life a load, you apply 40.0N of force to a lever. the lever applies 180N of force to the load. what is the mechanical advantage of the lever?
a. 4.5
b. 15.0
c. 6.2
The formula for calculating mechanical advantage is MA = output force / input force.
In this case, the output force is the force applied by the lever to the load, which is 180N, and the input force is the force applied to the lever, which is 40.0N.
Therefore, MA = 180N / 40.0N = 4.5
So, the mechanical advantage of the lever is 4.5.
Therefore, the correct answer is:
a. 4.5