8.2 We introduced the traffic dynamics model 2" (t + 7 ) = z'(t) - 2; 1(t) 1z;(t) - z;-1(t)1 with the idea that the braking force is directly proportional to the (negative) relative velocity and inversely proportional to the distance between the (j - 1)st and jth car. Now assume that z;_1(t) > z,(t), i.c., the (j - 1)st car speeds away from the jth car. Does this model still apply for this scenario or should it be changed? What modification might be suggested