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+//Example 3_12
+clc;clear;funcprot(0);
+// Given values 
+dV=90-0;//Change in velocity in km/h
+dt=10;// s
+b_1=2;// m
+b_2=0.6// m;
+g=9.81;// m/s^2
+a_z=0;// m/s^2
+
+// Calculation
+a_x=(dV/dt)/3.6;// The acceleration of the truck in m/s^2
+theta=atand(a_x/(g+a_z));// degree
+// Case 1:
+gradZ_s1=(b_1/2)*tand(theta)*100;// cm
+printf('Case 1 :The long side is parallel to the direction of motion:Vertical rise,grad_Zs1=%0.1f cm\n' ,gradZ_s1);
+// Case 2:
+gradZ_s2=(b_2/2)*tand(theta)*100;// cm
+printf('Case 2 :The short side is parallel to the direction of motion:Vertical rise,grad_Zs2=%0.1f cm\n',gradZ_s2);