Final answer:
The formula applicable to Newton's second law of motion is F = ma.
Step-by-step explanation:
Newton's second law of motion is represented by the equation Fnet = ma. This equation states that the net force acting on an object is equal to the product of its mass and acceleration. In other words, when a force is applied to an object, it will cause it to accelerate in the direction of the force, and the magnitude of the acceleration is directly proportional to the magnitude of the force and inversely proportional to the mass of the object. Therefore, the correct formula applicable to the second law of Newton is F = ma.