When line of impact during collision of bodies, is different from the direction of initial motion of spherical bodies, then the direction of motion of bodies after collision changes. This is because the impulse of contact force between bodies during impact, acts in direction that is different from initial direction of motion of bodies. Such a collision is called oblique collision or multidimensional collision.
In this section we will limit ourselves to
the discussion of oblique collisions in two dimensional plane only and such
collisions are also called two dimensional collisions.
To understand oblique
collisions first we will discuss the oblique collision of a ball with a flat
surface. This will help us in understanding the detailed analysis of oblique
collisions in a plane.
See the video below to understand the same –
Now we will analyze the two dimensional
collision of two spherical bodies in a plane. There are many numerical problems
which are framed on this concept so you need to go through this topic very
carefully and in detail.
See the video below for this –
For understanding of the applications of
two dimensional collisions, see the example videos below –