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+// Problem no 13.6,Page No.305
+
+clc;clear;
+close;
+
+F=5*10**3 //N //shea Force
+b=20 //cm //width of Flange
+t=6 //cm //Thickness of flange
+w_d=20 //cm //depth of web
+w_t=6 //cm //thickness of web
+X=700 //N //Shear Looad
+
+//Calculations
+
+a_1=b*t //cm**2 //Area ofFlange
+a_2=w_d*w_t //cm**2 //Area of web
+y_1=t*2**-1 //cm //C.G of Flange
+y_2=t+w_d*2**-1 //cm //C.G of Web
+
+Y=(a_1*y_1+a_2*y_2)*(a_1+a_2)**-1
+
+//M.I about N.A
+I=b*t**3*12**-1+b*t*(Y-y_1)**2+w_t*w_d**3*12**-1+w_t*w_d*(y_2-Y)**2 
+
+//Shear Force per metre Length in Plane of contact of two Planks 
+//Let Shear Force per metre Length=F_1 
+F_1=(F*a_1*(Y-y_1)*10**-6)*(I*10**-8)**-1
+
+//Spacing of nails
+s=X*F_1**-1*100
+
+//Result
+printf("The spacing of nails along the Length of beam is %.2f",s);printf(" cm")