Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsFalling Body with Zero, Linear, or Quadratic Air Resistancehttp://demonstrations.wolfram.com/FallingBodyWithZeroLinearOrQuadraticAirResistance/]]>http://demonstrations.wolfram.com/FallingBodyWithZeroLinearOrQuadraticAirResistance/