Fill in the mass of the particles (start with all equal), the starting velocity of A (4 to 10 m/s) and the coefficient of restitution. Press Submit each time.
Press Move A.
Calculate the velocities of A, B and C after the collisions.
To see the correct velocities press Show Answers.
Press Reset to repeat the simulation with different masses, velocities and coefficient of restitution.
The effect of changing the coefficient of restitution is particularly interesting and worthy of consideration.