3.3. Horizontal distribution of pressureTake a convenient element of fluid.Force balance: P1A= P2P1= PPressure is constant in any horizontal plane.Having the vertical & horizontal distributionallows to determine the pressure at any point in afluid at rest.Let's determine the shape of any free surface ofliquid in equilibrium.Assume some arbitrary shape,say a small height difference.A2gy2y213
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Force,Center of pressure,Gage Pressure,Patm,constant density fluid