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## Homework Statement

Pressure_2.jpg: http://www.imageupload.org/thumb/thumb_8609.jpg

A vertical dam wall has a width w. Water is filled to a height H behind the dam. Calculate the resultant force on the dam wall.

## Homework Equations

P=F/A

P= Pa + p*g*h

## The Attempt at a Solution

Using picture to solve the question

P=F/A

A=H*W

Thus P=Pa g*h*p where p is density and P is pressure.

Thus F=P*A=H*W*(Pa + gHp) where g is gravity.

Is this correct?