Incompressible fluid Pressure difference between two points in a body of fluid dP/dh=pg dP=pg dh Integrating from P, to P2 dp=p gdh h If fluid is incompressible and homogeneous p=constant 2-PI=pg(h2-h1=pg(Ah)Incompressible Fluid Pressure Difference between two points in a body of fluid dP/dh =  g dP =  g dh Integrating from P1 to P2 : If fluid is incompressible and homogeneous  = constant P2 – P1 =  g (h2 – h1 ) =  g ( h)  P1 P2 h1 h2 h   = 2 1 2 1 h h P P dP  gdh