1 Answer

Areke · Answer 1 · 2023-11-15T09:49:01+0000

ANSWER

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

Step-by-step explanation

The efficiency of the pulley system is given by:

$E=\frac{Output\text{ }work}{Input\text{ }work}*100$

Hence, the efficiency of the pulley system is:

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

That is the answer.

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