Asked by adachi ruth

A man whose mass is 75kg walks up a stairs each 20cm high in5seconds.calculate the power expended in watts.[assume g=10m\s2
Answered by Henry
20cm/step
12 steps?.
d = 20 * 12 = 240cm. = 2.40m.

P = F * d/t = Mg * d/t.
P = 750 * 2.4/5 = 360 J/s = 360 Watts.




Answered by Faiq
Yeah i think its the right one
Answered by Brad
You are an Ewuinma
Answered by Anonymous
its wrong he take 75kg=750g
ite 75kg=75000g
Answered by Anonymous
It's answer is 352.8 W
Answered by Destiny
Yes 360 is the correct one
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