What is the symbolic notation for the equilibrium rule for forces?

The equilibrium rule for forces states that when an object is in a state of equilibrium, the net force acting on it is zero. This means all the forces acting in various directions balance each other out, resulting in no change in motion. The symbolic notation for this concept is represented as EF = 0 or, in another notation, F_net = 0.

The use of 'EF' signifies the sum of all forces, while '0' indicates that there is no resultant force acting on the object. This principle is fundamental in physics, as it applies not just to stationary objects but also to those moving with constant velocity, reinforcing that equilibrium can be in dynamic situations as well.

The other provided notations describe different physical principles. For example, F = ma represents Newton's second law, which relates force to mass and acceleration rather than equilibrium. Thus, B accurately captures the essence of the equilibrium rule for forces.