Question

5. A wheel is used to turn a valve stem on a water valve.

The wheel radius is 4 inches and the axle radius is .25
inches.
a. What is the mechanical advantage of the wheel and
axle?

Answer 1

m = 16

Explanation:

We have,

Radius of wheel is 4 inches and radius of axle is 2.5 inches. It is required to find the mechanical advantage of the wheel and axle. For a wheel and axle, the radius of wheel to the radius of axle is called its mechanical advantage. So,

`m=\frac{\text{radius of wheel }}{\text{radius of axle}}\\\\m=(4)/(0.25)\\\\m=16`

So, the mechanical advantage of the wheel and axle is 16.