What Is The Difference Between Head On Collision And Oblique Collision?

What Is The Difference Between Head On Collision And Oblique Collision? There are two types of collisions between two bodies – 1) Head-on collisions or one-dimensional collisions – where the velocity of each body just before impact is along the line of impact, and 2) Non-head-on collisions, oblique collisions or two-dimensional collisions – where the