Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsMotion of Projectile with or without Air Resistancehttp://demonstrations.wolfram.com/MotionOfProjectileWithOrWithoutAirResistance/]]>http://demonstrations.wolfram.com/MotionOfProjectileWithOrWithoutAirResistance/