Complete the model of rocket motion described in this module and begun in Rocket (see "Download"). Use your model to compare a Centaur Upper Stage System, which is a chemical system, and the Electrostatic Thruster System, which utilizes the sun's nuclear energy as well as a propellant (see Table 3.4.2). Your comparison should include maximum velocity, propellant 'ass, thrust tile, and the types of missions advisable for each (Fin-e 1980)
