- #1
Husker70
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Homework Statement
A horizontal pipe 10.0cm in diameter has a smooth reduction to a pipe
5.00cm in diameter. If the pressure of the water in the larger pipe is
8.00x10^4Pa and the pressure in the smaller pipe is 6.00x10^4Pa, at
what rate does water flow through the pipes?
Homework Equations
A = pie(r)^2
Kinematics equation to find velocity
A1V1 = A2V2
F=PA
The Attempt at a Solution
I got areas first
A = pie(5.00cm)^2 = 78.5cm^2
A = pie(2.50cm)^2 = 19.6cm^2
Then I found F using F=PA
F = (8.00x10^4Pa)(78.5cm^2) = 6.28x10^6N
F = (6.00x10^4Pa)(19.6cm^2) = 1.18x10^6N
I'm not sure what kinematics equation to use to find velocity
Thanks,
Kevin