Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsShooting a Ball from a Block Sliding Down a Ramphttp://demonstrations.wolfram.com/ShootingABallFromABlockSlidingDownARamp/]]>http://demonstrations.wolfram.com/ShootingABallFromABlockSlidingDownARamp/