A person lifting a bucket of water from a well, did the work of 600 J. At the same time, a useful work of 450 J
| February 11, 2021 | education
A person lifting a bucket of water from a well, did the work of 600 J. At the same time, a useful work of 450 J. was performed. What is the efficiency of the well gate?
Initial data: A1 (the work that the person did when lifting the bucket, the work expended) = 600 J; A2 (useful work when lifting a bucket) = 450 J.
The efficiency of a well gate can be determined by the formula: η = (A2 / A1) * 100%.
Let’s calculate: η = (450/600) * 100% = 0.75 * 100% = 75%.
Answer: The efficiency of the well gate is 75%.
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