Lever efficiency is 98%. Determine the total perfect work if the useful work is 470.4 J.
| June 22, 2021 | education
Data: η – efficiency of the presented lever (η = 98% = 0.98); Apol is a well-known useful work (Apol = 470.4 J).
To find out the required complete perfect work, consider the formula: η = Apol / Apol.x, from where we express: Apol.x = Apol / η.
Let’s perform the calculation: Apol.x = Apol / η = 470.4 / 0.98 = 480 J.
Answer: The total perfect work, according to the calculation, is 480 J.
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