If a hammer has a resistance arm of 3 inches and the effort arm is 15 inches. What is the mechanical advantage?

Question

MA = 2

MA = 10

Ma = 15

MA = 5

Answer 1

The mechanical advantage (MA) of a lever can be calculated using the formula:

\[ \text{MA} = \frac{\text{length of effort arm}}{\text{length of resistance arm}} \]

In your case, the resistance arm is 3 inches and the effort arm is 15 inches.

Plugging in the values:

\[ \text{MA} = \frac{15 \text{ inches}}{3 \text{ inches}} = 5 \]

Therefore, the mechanical advantage is MA = 5.