Elastic and Inelastic Collisions

Description
Considering elastic collision of a ball with a wall we come across a very intriguing question in which the wall has momentum but no kinetic energy. Is it possible? Dont miss the experiment on elastic collision performed towards the end of the class.

Prof. Walter Lewin, 8.01 Classical Mechanics, Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed June 10, 2011). License: Creative Commons BY-NC-SA: http://ocw.mit.edu/terms/#cc