Question

You do 1,500j of work in using a hammer. the hammer does 825j of work on a nail. what is the efficiency of the hammer?

Answer 1

A tool or machine's work efficiency is represented by the ratio of the amount of energy exerted and the amount of work done by the object. Thus, if you exert 1500 J work and the hammer does 825 J, the work efficiency is


`Efficiency = (825)/(1500) = 0.55`

`Efficiency = 55%`

Thus, the efficiency of the hammer is 55%.

Answer: 55%