1 D Collision is a free and easy to use software that allows users to simulate a 1D collision.
The user can set the mass of each object, the initial velocity of each object and the elasticity of the collision. The user can also set the start position of the red cart to be in the middle or the right.
The simulation then collides the carts, shows the after conditions and creates plots of the momentum and kinetic energy for each cart separately as well as the total momentum and total kinetic energy of the system.