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

Vinothkr asked Sep 22, 2023

422,773 views

6 votes

Vinothkr asked Sep 22, 2023

2.9k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

5 votes

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.

Kamrul Khan answered Sep 27, 2023

3.1k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers