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+//Example 2_14 page no:188
+clc;
+//given
+mass = 136000;//in kg
+g = 9.81;
+up_gradient = 1/600;
+len = 1005;//in m
+V = 1500;
+comp_train_wg = mass * g * up_gradient;
+net_tractive_effort = 104500 - 6675;
+f = net_tractive_effort / (1.1* mass);
+quantity = 1/f;
+retarding_coasting = 4448/(1.1 * mass);
+area_current_curve = 21300*V/3600;
+energy_consumption = area_current_curve/(mass*len);
+disp(energy_consumption,"the energy consumption of motor-coach train is (in Wh/kg-m)");