I know that the forces acting between 2 protons are:
Gravitational attractive force
Electrostatic repulsive force
Strong nuclear force
However, I am not sure what the relationship between these 3 forces is.
Is it Fs = Fg + Fe or Fs = Fe - Fg ?
Or are these the same, but the second one is considering the direction of the force whereas the first is only considering magnitude, since -(-) would give you an addition of the magnitudes of the two forces?