Question

In a one dimensional collision between two identical particles a and b

Answer 1

one dimensional interaction of masses is that collision in which both the initial and final velocities of the masses lie in one line. all the variables of motion are contained in a single dimension.

Explanation:

In an elastic collision, the objects bounce off each other after colliding, while in an inelastic collision, the object that collide stick to each other after the collision. when solving one dimensional collision problems in a physics course, what we are really working with are conservation laws.