This was a class project for our control theory course. By working on this we learned a few things that we wanted to share with the interested ones who are willing to work on simulation using MATLAB & simulink.
The MATLAB simulink files for the project:
https://www.dropbox.com/s/v2dq7pfex61...
The ball_collision.mdl file need be to opened with MATLAB 13a or above to run the simulation.