A man of mass 50kg asends.lf the asends a flight of stairs 5m high in 5 seconds.lf the acceleration due to gravity is coms-2, the power expended is?
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Answer:
500W
Explanation:
power = workdone / time
workdone = force × distance (vertically)
500N × 5
2500N
power = workdone / time
2500/5
500W
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