Sorry, I'm new here.
Point A is anywhere in the X, Y axis, same for point B.
I'm working in a 3D model, so I think Z ground is a factor here. I'm not using resistive forces btw.
Let me explain it better:
I have a ball in the next coords: 50.0, 25.0, 3.0 (point A)
And I want to "launch" it...