I can’t get this rocket into orbit. Could somebody help. Please don’t change the initial conditions but the rest is free game. It needs to do this: Update your Finite Difference Method code such that
b) The simulation takes into account atmospheric drag.
c) The spaceship thrusts in the same direction as the velocity.
d) The spaceship has at least two stages, with different specific impulses between 2.5 km/s and 4.5 km/s.
e) The spaceship reaches a stable orbit without lithobraking (make sure to simulate a full orbit to verify!), and stops accelerating.