If Car A is 2500 kg and going 4 m/s north toward Car B, which is 4000 kg and going 2.5 m/s south toward Car A, what will happen when they collide and couple? If Car A is 2500 kg and going 4 m/s north toward Car B, which is 4000 kg and going 2.5 m/s south toward Car A, what will happen when they collide and couple? Car A and B will moving North Car A and B will be moving South Car A and B will come to rest upon impact none of these