Question

the diagram shows an inclined plane. length 120 in. height 30 in. what is the mechanical advantage of the inclined plane? A. 0.25 B. 4 C. 90 D. 150

Answer 1

The correct answer is
B. 4

In fact, the mechanical advantage (MA) of an inclined plane is equal to the ratio between the length of the plane and its height:
$MA= \frac{L}{h}$

The ramp in this problem has a length of L=120 in and a height of h=30 in, therefore its mechanical advantage is
$MA= \frac{L}{h}= \frac{120 in}{30 in}=4$

Answer 2

Answer:

The answer is B - 4.

Explanation:

This is because you have to divide the length of the slope by its height to find the mechanical advantage of a incliuned sliope