1. The problem statement, all variables and given/known data A red car and a green car, identical except for the color, move toward each other in adjacent lanes and parallel to an x axis. At time t 0, the red car is at xr 0 and the green car is at xg 220 m. If the red car has a constant velocity of 20 km/h, the cars pass each other at x 44.5 m, and if it has a constant velocity of 40 km/h, they pass each other at x 76.6 m.What are (a) the initial velocity and (b) the constant acceleration of the green car? 2. Relevant equations v=vo+at x-xo=vot+(1/2)at2 3. The attempt at a solution The only things I am able to obtain by myself are that the green car will be 175.5 m after 8 seconds and it will be at 143.4 m after 6.9 seconds. After that, all of the equations I know or can derive from the two shown will contain at least two variables. I have no idea where to go from there. I know the solutions (according to my solutions manual): a. vo= -13.9 m/s b. a = -2.0 m/s2 but I haven't the slightest of clue as to how to reach them. Math is not my strongest suit. Any help is appreciated. Thanks!