Recent content by Ekpyrotic

's' is the standard abbreviation for displacement. If you are finding it hard to use the equations directly it's probably because you don't quite know what you're heading for. This may help, or it my not, if both car's movement were mapped onto a distance-time graph would they cross? If so...

Hi. I'd say you're thinking about the problem in the wrong way. Try drawing up the parabolic graph of distance vs velocity, and then ask yourself what the graph's shape is suggesting. I hope that's a good enough hint in the right direction. ~ Ek.