Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsVelocity for an Airplane to Achieve Liftoffhttp://demonstrations.wolfram.com/VelocityForAnAirplaneToAchieveLiftoff/]]>http://demonstrations.wolfram.com/VelocityForAnAirplaneToAchieveLiftoff/