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