The question itself is not hard at all, it involves finding the angle and acceleration of a rocket to a said point, in a span of let's say, 20s. So I need a program that would write the equation of motion. I successfully did the first part of the question, which is very similar, the only change being, starting velocity is V at an angle alpha, with only gravity acting on it. In the second part we can assume that the effect of gravity on the acceleration is already accounted for.

If anyone is willing to help, I've attached the notebook, the problem I have is with projectileB

Thanks in advance