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+//Solutions to Problems In applied mechanics
+//A N Gobby
+clear all;
+clc
+//initialisation of variables
+E=14*10^6//lbf/in^2
+l=5.0//tonf/in^2
+y=2*(1/4)//in
+yc=4*3/4//in
+n=2*1/2//in
+p=1*1/4//in
+q=2.25//in
+I=55.25//in^4
+m=10.56//tonf/in^2
+a=(1*(yc^3))
+b=6*(y^3)/3
+c=(n*p^3)/3//in^4
+//CALCULATIONS
+INA=(a+b-2*c)*2//in^4
+Fa=(l*yc)*(yc*y)/2//tonf/in^2
+M=(l*INA/q)//tonf in
+//RESULTS
+printf('Thesecound moment of area about its neutral axis=% f in^4',INA)
+printf('The maximum compressive stress on the section=% f tonf/in^2',Fa)
+printf('the bending moment is=% f tonf in',M)