Bibliogprahy:
1. http://www.sparknotes.com/physics/kinematics/2dmotion/problems_1.html
2. http://apardinas.blogspot.com/2009_11_01_archive.html
3. Lectures from David Newman Fall 2010
4. http://www.elec-intro.com/projectile-motion
5. http://www.digitalbattle.com/2010/05/27/michael-jordan-to-cover-nba-2k11/