Matlab code for Newtons method

The speed u of a Saturn V rocket in vertical flight near the surface of earth can be approximated by Mo Mo-t where 2510 m/s velocity of exhaust relative to the rocket 13.3 x 103 kg/s rate of fuel consumption time measured from liftoff Mo 2.8 x 106 kg mass of rocket at liftoff g9.81 m/s gravitational acceleration h me we