Engineering Board Exam Reviewer · Physics · medium
A 60 kg person runs up a flight of stairs 4 m high in 6 s. What average power is developed? (g = 9.81 m/s2)
- 2354.4 W
- 392.4 W
- 40.0 W
- 882.9 W
Answer
B. 392.4 W
Solution
P = mgh/t = 60(9.81)(4)/6 = 392.4 W.
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