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A person applies a 13.5 N force to a hammer while it moves a distance of .12 m. The hammer completes 1.56 J of work on the nail. What is the efficiency of the hammer? Must show all work, have correct sig figs, and include correct units for full credit

Respuesta :

The efficiency of the hammer is 96.29%

Explanation:

Given-

Force, F = 13.5N

Distance, x = 0.12m

Work, W1 = 1.56J

Efficiency, η = ?

Work done = F X x

W2 = 13.5 X 0.12J

W2 = 1.62J

Efficiency = W1 / W2 X 100

η = 1.56/1.62 X 100

η = 96.29%

Therefore, the efficiency of the hammer is 96.29%

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