Collisions between gliders repelled by magnets

Description

Two gliders (where one of them may be composed of two segments) move on an air track. Each of the gliders carries a strong magnet designed so that the gliders repell each other when they are moving toward each other.
The movie shows a few different conficurations of gliders moving in different situations. Positions can be measured with the help of the movie giving oportunity to analyze and model the collisions.