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+// A Textbook of Fluid Mecahnics and Hydraulic Machines - By R K Bansal
+// Chapter 3-Hydrostatic Forces on surfaces
+// Problem 3.14
+
+                                   //Problem a)
+//Data given in the Problem
+b=2
+d=3
+theta=30
+dens=1000
+g=9.81
+
+//Calculations
+//1)total pressure
+A=b*d
+h=1.5+1.5*sin(30/180*%pi)
+F=dens*g*A*h
+mprintf("Part a)\nThe total pressure is %f N\n",F)
+//2)
+IG=(b*(d^3))/12
+H=IG*sin((30/180*%pi))^2/(A*h)+h
+mprintf("The COP is %f m \n",H)
+
+                                    //Problem b)
+//Data given in the Problem
+b=3
+d=4
+theta=30
+dens=1000
+A=b*d
+h=2+2*sin(theta/180*%pi)
+
+//Calculations
+//1)
+F=dens*g*A*h
+mprintf("Part b)\nThe total pressure is %f N\n",F)
+//2)
+//2)
+IG=(b*(d^3))/12
+H=IG*sin((30/180*%pi))^2/(A*h)+h
+mprintf("The COP is %f m \n",H)