Chapter 4, Problem 6STP

To determine

To calculate: Efficiency of the ramp.

Answer to Problem 6STP

Efficiency of the ramp is $\underset{\_}{50\text{ percent}}$ .

Explanation of Solution

Given:

Output work = $600\text{ J}$

Input work = $\text{1200 J}$

Formula used:

Efficiency is given by,

$e=\frac{W_{\text{out}}}{W_{\text{in}}}\times 100$

where $W_{\text{out}}$ is output work and $W_{\text{in}}$ is input work.

Calculation:

Efficiency is calculated as:

$\begin{array}{l}e=\frac{W_{\text{out}}}{W_{\text{in}}}\times 100\\ =\frac{600\text{ J}}{1200\text{ J}}\times 100\\ =50\%\end{array}$

Conclusion:

Efficiency of the ramp is $\underset{\_}{50\text{ percent}}$ .