(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find the hydrostatic force on any side of a bottom half-circle with a 6 m diameter with the top 1 m above water level.

http://img377.imageshack.us/my.php?image=45095885io3.png"

2. Relevant equations

P = 1000 * 9.8 (mass density of water) * displacement

A = l * w

F = P * A

3. The attempt at a solution

Pressure = density * gravity * displacement

displacement = (2 - y)

x = [tex]2\sqrt{9 - y^2}[/tex]

A = x * delta y (for any rectangular strip)

I'm concerned with my displacement; would it be 2 - y?

Would I be integrating from -1 to -3?

EDIT: I looked over the problem again, I think what we really have is a semi circle with a radius of 2 at sea level.

The area would be 2 * sqrt(4 - y^2) and the displacement just y, I think :)

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# Homework Help: Hydrostatic force, half circle

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