A force of 12 N is applied to the handle of a screwdriver being used to pry off the lid of a paint can. As the force moves through a distance 0.3 m, the screwdriver does 3.2 J of work on the lid. What is the efficiency of the screwdriver? Show your work.

Answer 1

efficiency = [3.2 / (12 * 0.3)] * 100%

Answer 2

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