Question

A pulley system gets 80Joules of work after 200Joules of work is put in. What is the efficiency of the pulley system.

Answer 1

`\begin{equation*} 40\% \end{equation*}`

Step-by-step explanation

The efficiency of the pulley system is given by:

Hence, the efficiency of the pulley system is:

`\begin{gathered} E=(80)/(200)*100 \\ E=40\% \end{gathered}`

That is the answer.