You raise a bucket of water from the bottom of a well that is 12 m deep. The mass of the bucket and the water is 5.00 kg, and it takes 15 s to raise the bucket to the top of the well. How much power is required?

Answer 1

d = 12m
m = 5kg
t = 15s
P = ?
P = F.v
F = mg
F = (5kg)(9.81m/s2)
F = 49.05N
v = d/t
v = 12m/15s
v = 0.8m/s
P = F.v
P = (49.05N)(0.8m/s)
P = 39.24watt