1. The problem statement, all variables and given/known data A car and a van are at rest on a straight horizontal road, with the van 25m in front of the car. At time t=0 seconds, the van moves off with an acceleration of 1.5 m/s². At time t=5 seconds, the car moves off in the same direction along the road with an acceleration of 2 m/s². use the sketches (I did a computer sketch and it can be found "http://i16.photobucket.com/albums/b21/the_panic_light/carvan.jpg" [Broken]) of the velocity/time graphs of the car and van, on the same set of axes, to calculate the time at which their velocities are the same and state this velocity. Also, from the sketch, determine the distance between the van and car at this time. 2. Relevant equations Well, because it's graphical methods, I've used v - b = m (t - a) with (a,b) = (5,0) The van's equation is v = 1.5t The car's equation is v = 2t - 10 3. The attempt at a solution I equated the two equations to get the velocity being the same at t = 20, and substituted this in the van's equation to get that velocity to be v= 30. My main problem is with finding the distance between the van and the car at that time. The answer tell me it's 100m, but I've no idea what the method is. Please help! Thanks.