Physics - Kinematics Question with Solution | TestHub

A long straight road connects two towns, A and B. There are two small towns, C and D, between towns A and B. The condition of the road between towns C and D is bad. Two cars travel from A to B at a constant speed $v_1$ everywhere except between towns C and D, where they travel at speed $v_2$. In the following graph, the separation between the cars is shown with respect to time for a time interval of 80 seconds.