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+//Exa 10.11
+clc;
+clear;
+close;
+//Given data :
+L=200;//m
+h=10;//m
+D=2;//cm
+wc=2.3;//kg/m
+Pw=57.5;//kg/m^2(wind pressure)
+SF=4;//safety factor
+stress=4220;//kg/cm^2
+w_w=Pw*D*10^-2;//kg
+wr=sqrt(wc^2+w_w^2);//kg
+f=stress/SF;//kg/cm^2
+T=f*%pi/4*D^2;//kg
+x=L/2-T*h/(wr*L);//m
+S1=wr*x^2/2/T;//max sag in air
+disp(S1,"Slant sag(m)");
+Sdash=wc*x^2/2/T;//vertical sag
+disp(Sdash,"Vertical Sag(meter)");