The distance from the ground to the floor of a trailer is 20 inches. The length of the ramp is 50 inches. What is the mechanical advantage of this simple machine?

The mechanical advantage of a ramp can be calculated as the ratio of the length of the ramp to the vertical height it spans. In this case, the mechanical advantage is 50 inches (length of the ramp) divided by 20 inches (vertical height), which equals 2.5. So, the mechanical advantage of this ramp is 2.5.