A student who weighs 500.0 N climbed the stairs from the first floor to the third floor, 15-m above, in 20.0 seconds. What power did she produce?
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Answer:
power = work / time
so
work = f × d
work = 500N × 15m
= 7500 Nm
power = 7500/20 J
=325 J
joule is the SI unit
.
Explanation:
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