Question

A hiker wears a 7.5 kg backpack while climbing a mountain. After 30 mins thw hiker is 8.2 m above the starting point. What is the average amount of power created by the hiker?

Answer 1

Power:
P= A/t
A = F · h = m · g · h
P = m · g · h / t,           m = 7.5 kg, g = 9.81 m/s², h = 8.2 m, t = 1800 s
P = 7.5 · 9.81 · 8.2 / 1800 = 0.335 W