Asked by Liz
A 136-lb. student races up stairs with a vertical height of 4.8 m in 6.0 s to get to a class on the second floor. How much power in watts does the student expend in doing work against gravity?
Answers
Answered by
Steve
power = work/time
work = force * distance
136 lb * 4.448N/lb = 605N
605N * 4.8m / 6.0s = 484W
work = force * distance
136 lb * 4.448N/lb = 605N
605N * 4.8m / 6.0s = 484W
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