G: Gravity in tenths of Meters/Sec^2 (Earth = 98) l: Length in Centimeters w: Width in Centimeters M: Mass in kg. T: Temperature in C (All velocities are in m/s) Rho: Air density in tenths of kg/m^3 (Air ≈ 13.5) Ystart: Starting Y position in km above ground Height of box is 40 cm
