- #1

morrobay

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**1, Problem Statement.**

A resevoir releases water into a 2 meter diameter drain pipe that is 200 m long with a 5

^{ο}gradient drop. Assume pipe is full without friction. If v

_{0}is zero what is velocity at 200 meter discharge ?

And what is the pressure in atm ? The height at pipe end is - 17 meters. A 17 m drop from resevoir to end of 200 meter pipe

## Homework Equations

For vertical time , y = 1/2 at

^{2}= 1,86 sec

For vertical velocity v

_{y}= v = √2ay = 18m/sec

Pressure = Force/Area = mass*acc/area = 628000 kg * 9,8m/sec

^{2}/3.14 m

^{2}

Pressure = p

_{0}+ ρ h g

Assume water density = 1

## The Attempt at a Solution

[/B]Sine 5

^{0}= .087. = 18m/s/v = 204m/sec ? or is it sine 5

^{0}(18m/s) = 1.5m/sec ?

Not sure about pressure formula to atm

All Im looking for are the equations for velocity and pressure at pipe exit from above data. http://www.calctool.org/CALC/eng/civil/hazen-williams_g

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