Determine the efficiency of the lever if the useful work that is done when using it is 200J and the total is 250J.

univerkov | May 30, 2021 | education

Given: Ap (useful work that was done when using a given lever) = 200 J; Apoln (full work) = 250 J.

To determine the efficiency of a given lever, we will use the formula: η = Ap / Apoln.

Let’s calculate: η = 200/250 = 0.8 or 80%.

Answer: The given lever has an efficiency equal to 80%.

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