//Exa 10.2 clc; clear; close; //Given data : W=680;//kg/km L=260;//m U_strength=3100;//kg SF=2;//safety factor Clearance=10;//m T=U_strength/SF;//kg w=W/1000;//kg S=w*L^2/(8*T);//,m h=Clearance+S;//m disp(h,"Height above the ground(m) :");