A person lifts a bucket weighing 10 kg from a well 8 m deep in 16 seconds. What power does it develop at the same time?

t = 16 s.
h = 8 m.
m = 10 kg.
g = 10 m / s ^ 2
N -?
N = A / t.
The capacity N is the work A performed in a unit of time t.
A = F * h.
Work A is determined by the product of the force F and the distance h, over which this force acts.
F = m * g.
A = m * g * h.
N = A / t = m * g * h / t.
N = 10 kg * 10 m / s ^ 2 * 8 m / 16 s = 50 W.
Answer: N = 150 W.