A boy weighing 50 climbed to a height of 30 meters in 10 minutes. Find power.
| July 22, 2021 | education
Given: m (boy’s weight) = 50 kg; h (the height the boy climbed) = 30 m; t (the time it took the boy to climb to a given height) = 10 minutes (600 s).
Constants: g (acceleration due to gravity) ≈ 10 m / s2.
The power that the boy developed when climbing to a given height is determined by the formula: N = A / t = ΔEp / t = m * g * h / t.
Calculation: N = 50 * 10 * 30/600 = 25 W.
Answer: The boy’s power is 25 W.
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