What is the efficiency of a ramp if 2,000 joules of energy results in 1,200 joules of work?(1 point)

Question

Responses

60%
60%

24%
24%

80%
80%

32%

Answer 1

To calculate the efficiency of a ramp, you can use the formula:

\[ \text{Efficiency} = \left( \frac{\text{Useful work output}}{\text{Total energy input}} \right) \times 100% \]

Substituting the given values:

• Useful work output = 1,200 joules
• Total energy input = 2,000 joules

\[ \text{Efficiency} = \left( \frac{1200 , \text{joules}}{2000 , \text{joules}} \right) \times 100% \]

\[ \text{Efficiency} = \left( 0.6 \right) \times 100% = 60% \]

Thus, the efficiency of the ramp is 60%.