I am trying to create a very simple example where I set a force field on an empty to simulate Earth's gravity. The scenario consist on:
- a cube, with rigid body enabled (active), set at an altitude of 10m.
- a plane, with rigid body enabled (passive), set at the origin (0m).
- an empty, set at a position (0, 0, -R_earth), and with a force field attached to it. The force field has a "strength" of -3.986e+14 and has the gravitation label activated (multiplying the resulting force by the inverse of the squared distance).
One would expect the cube would drop in around 1.428s (at least its centre of mass), but it just doesn't. I am aware that Blender is not perfectly transparent when it comes to physics, but there is the possibility that I am doing something wrong with the fps of the simulation (or the rendering of the simulation), or something else.
I attach the .blend file here so you can see what I am playing with and maybe find out what/if I am doing wrong.