Dewey B. Larson, in The Neglected Facts of Science, page 10 wrote:
And on page 13, Larson affirms that the force is the result of a motion, not the cause:It follows from the definition that force is a property of a motion; it is not something that can exist as an autonomous entity.
The conjugate of force (t/s2) is acceleration (s/t2), a measurement of change in velocity. It is easier to think of force in terms of acceleration, to understand that force is only a measurement of change caused by other motions. When one steps on the gas pedal of a car, it causes a change in motion which is felt as acceleration. When the pedal is released, the acceleration stops and a uniform velocity returns. Force works the same way; when another motion interacts with a measured motion, such as a mass entering a gravitational field, that interaction is measured with force vectors showing how a distributed scalar motion was mapped to the reference system.A uniform vectorial motion does not exert a force. By definition, a force develops from such a motion only when there is a departure from uniformity: that is, when there is a change in momentum.
When "forces" are distributed about an object, as in a distributed scalar motion, Larson refers to them as a "force field." Since there are no "elementary forces" in the Universe, as they are properties of motion and not causes of it, so the idea of a "Unified Field Theory" does not make much sense! It would be like having a "Unified Film Theory" that details the interaction of characters on a movie screen in an attempt to describe the actual movements of actors on the stage in which they were filmed.
When Larson's concept of force is modeled on a computer, one quickly discovers that an independent field, either electric, magnetic or gravitational, has NO FORCE associated with it, and the force ONLY results when two or more force fields interact. Even the act of MEASURING a force field introduces the second force field (the sensor) to create resultant force vectors.
Therefore, what we call "force" is simply the coordinate measurement of the interaction of two or more distributed scalar motions.