// A Textbook of Fluid Mecahnics and Hydraulic Machines - By R K Bansal // Chapter 3-Hydrostatic Forces on surfaces // Problem 3.1 //Data given in the Problenm w=2 d=3 dens=1000 g=9.81 //Calculations //Upper edge coincides with water surface A=w*d H=d/2 F=dens*g*A*H I_G=w*d^3/12 //MOI about the CG of the area of the surface h=I_G/(A*H)+H mprintf("The position of COP when Upper edge coincides with water surface is %fm\n",h) mprintf( "And the Pressure on the area is %f N \n",F) //Upper edge is 2.5m below water surface H=d/w+2.5 F=dens*g*H*A h=I_G/(A*H)+H mprintf("The position of COP when Upper edge is 2.5m belowh water surface is %f m\n",h) mprintf( "And the Pressure on the area is %f N \n",F)