Problem 3 This figure shows the position vs. time graphs for two objects before and after they collide. Assume that they form an isolated system. {a} What are the velocities of the two objects before and after the collision? (Hint: you will get a more accurate result if you choose the initial and final times where the lines go exactly through a point on the grid shown.) (b) Given the result in {a} what is the ratio of the inertias of the two objects