A 70kg person climb a 2.0m high flight of stairs within 8s when he walks and 2s when he run upstairs. What is the power dissipated by the person when he runs up the stairs
Answers
Answered by
2
Answer:
m = 70kg, h = 2.0m, g = 9.8m/s², t = (8+2)s = 10s
W = mgh
= 70 × 9.8 × 2.0
= 1372 Joule.
Power = Workdone/Time
= 1372/10
= 137.2 Watt.
Similar questions