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+//Example 5_11
+clc();
+clear;
+//To find out how fast a car is going at points B and C
+m=300  //units in Kg
+g=9.8  //units in meters/sec^2
+hb_ha=10   //units in meters
+f=20   //units in Newtons
+s=60   //units in meters
+vf=2*sqrt((0.5*((m*g*(hb_ha))-(f*s)))/m)   //units in meters/sec
+printf("The car is going at a speed of vf=%.1f meters/sec at point B\n",vf)
+hc_ha=2   //units in meters
+vf=2*sqrt((0.5*((m*g*(hc_ha))-(f*s)))/m)   //units in meters/sec
+printf("The car is going at a speed of vf=%.2f meters/sec at point C\n",vf)