As the nuclear force is the strongest force in the known universe, what will be it's equation and what will be the value of its constant?
At the level of quantum hadron dynamics (i.e. the level of nuclear physics, not the level of particle physics where the real strong force lives) one can talk about a Yukawa potential of the form
V(r)=−g^2/4πc^2 . e−^mr/rwhere m is roughly the pion mass and g is an effective coupling constant. To get the force related to this you would take the derivative in r.
This is a semi-classical approximation, but it is good enough that Walecka uses it breifly in his book.