I'm an inventor and I have an idea involving magnets. Unfortunately, I'm having a hard time trying to interpret magnetic equations. Please forgive me if I sound like a noob.. I'm new to magnetism. Lets say you have a bar magnet with a field B, oriented perpendicular to a wooden interface with a thickness "d." The north end of the magnet touches the wood. Directly on the other side of the interface is an iron block with a mass, m. For simplicity, lets say this iron block is a dimensionless point in the magnetic field. If the field B magnetically saturates the iron block, what force does the iron block exert on the wooden interface. I'm asking this question to gain a better understanding of magnetism and how to theoretically quantify magnetic concepts. Please educate me! Thanks!