If your actual mechanical advantage is 10 J and the theoretical is 40 J, what is your percent efficiency? Hint: % Efficiency = (Actual MA/Ideal MA) * 100(1 point)

Responses

0.25%
0.25%

25%
25%

4%
4%

400%

1 answer

To calculate the percent efficiency using the formula you provided:

\[ \text{Percent Efficiency} = \left( \frac{\text{Actual MA}}{\text{Ideal MA}} \right) \times 100 \]

Plugging in the values:

\[ \text{Percent Efficiency} = \left( \frac{10 , \text{J}}{40 , \text{J}} \right) \times 100 \]

\[ \text{Percent Efficiency} = \left( 0.25 \right) \times 100 \]

\[ \text{Percent Efficiency} = 25% \]

Thus, the correct response is:

25%