Question

calculate the efficiency of a four wheeled Pulley system if it is used to lift a load of 500N by using an effort of 300N​

Answer 1

60%

Step-by-step explanation:

Efficiency is given by the ratio of effort arm to load arm expressed as a percentage. In this case, the effort is given as 300 N while load is 50 N. The efficiency will be
`\frac {300}{500}* 100=60`

Efficiency= 60%