What power does a person develop when he lifts a bucket of water weighing
| September 16, 2021 | education
What power does a person develop when he lifts a bucket of water weighing 12 kg from a well 20 m deep in 15 seconds?
Initial data: m (mass of a bucket of water raised by a person) = 12 kg; h (well depth) = 20 m; t (bucket lifting time) = 15 s.
Reference values: g (acceleration due to gravity) ≈ 10 m / s2.
The power of a person when lifting a bucket of water can be calculated by the formula: N = A / t = Ep / t = m * g * h / t.
Calculation: N = 12 * 10 * 20/15 = 160 W.
Answer: When lifting a bucket of water, a person develops a power of 160 watts.
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