- #1
student34
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Homework Statement
Water is pumped from a well at 800kg/minute. The well is 14.0 meters deep. By the time the water reaches the top of the well, it is traveling at 18.0m/s. How much work is done on the water by the pump?
Homework Equations
ƩFy = F - m*g = m*a
W = F*y
a = vf/t
The Attempt at a Solution
a = vf/t = (18.0m/s)/60.0s = 0.300m/s^2
F = m*a + m*g = 8080 N
W = F*y = 8080N*14.0m = 113,120 J
But the answer in my textbook is 1.30*10^5 J.