The main goal of this demo is to show how you can improve your visualization and understanding of a dynamic system that has simple second order differential equations but complex to visualize due to switching between them. By using 3D animation, you can get a much better understanding of the deformation of the ball.
The zip file contains:

1. PDf document: This walks through the modeling equations for free fall , the collision and the deformation.
2. The mdl file contains the Simulink® model that represents the above equations. We use Embedded MATLAB® to model contact and collision equations.
3. The WRL file contains the 3D world built with V-Realm Builder.

The videos walking through these steps are available here:

1. Building a Simulink Model

http://www.mathworks.com/videos/getting-started-with-simulink-3d-animation-part-1-build-a-simulink-model-68731.html

2. Building a 3D World
http://www.mathworks.com/videos/getting-started-with-simulink-3d-animation-part-2-build-a-3d-world-in-vrml-68732.html

3. Connect SImulink Model to 3D World

http://www.mathworks.com/videos/getting-started-with-simulink-3d-animation-part-3-connect-simulink-model-with-3d-world-68733.html

Check out some other videos and product demos here: