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+//(Brakes) Example 12.2
+//Total mass of the car m (kg)
+m = 1000
+//Moment of inertia of each wheel about its transverse axis I (kg-m2)
+I = 0.5
+//Rolling radius of the wheel R (m)
+R = 0.35
+//Moment of inertia of other parts of the car Ie (kg-m2)
+Ie = 2.5
+//Ratio of speed of engine to the speed of wheels r
+r = 5
+//Speed of the car v1 (km/h)
+v1 = 100
+//Car deceleration dec (m/s2)
+dec = 0.5 * 9.81
+//Final speed of the car v2 (km/h)
+v2 = 0
+//Number of wheels n
+n = 4