Question

Efficiency of the machine is75%. If the work output is 450J what is the work input

Answer 1

[AI-generated answer — Bot GPT 3.5]

To calculate the work input, we can use the formula:

Efficiency = (Work output / Work input) x 100

Given that the efficiency is 75% and the work output is 450J, we can rearrange the formula to solve for the work input:

0.75 = (450 / Work input) x 100

0.75 = 450 / Work input

Work input = 450 / 0.75

Work input = 600J

Therefore, the work input is 600J.