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+// A Textbook of Fluid Mecahnics and Hydraulic Machines - By R K Bansal
+// Chapter 3-Hydrostatic Forces on surfaces
+// Problem 3.22
+
+//Data given in the Problem
+w=1
+r=2
+AO=2
+dens=1000
+g=9.81
+
+//calculations
+//For F in x dir:
+A=w*r       //Projected are of curved surface on vertical wall
+//h=depth of CG of OC from free surface
+h=1.5+AO/2              //since AO=OB
+F_x=dens*g*A*h
+mprintf("The Force in th x directions is %f N \n",F_x)
+
+//For F in y direction;
+AD=1.5
+W_DAOC=dens*g*(AD*AO*1)
+W_AOB=dens*g*%pi/4*AO^2
+F_y=(W_DAOC+W_AOB)            //weight of DAOC +AOB
+mprintf("The Force in th y directions is %f N \n",F_y)