Why is a distinction made between rotational and translational inertia in the Theory of Dynamic Interactions?

The theory supposes that rotational inertia is basically different to translational rotation, thus it distinguishes between both concepts. The Theory of Dynamic Interactions is based on the inertial impossibility of matter in certain circumstances to modify its previous dynamic state as a result of its inertia, thus the idea of rotational inertia is proposed as an invariant of mass. The resulting laws of behaviour are conceived as nature’s heretofore acknowledged refusal to couple selectively and discriminatingly and enable the conception of a rotational dynamics of interactions for specific and distinct, non-inertial systems that includes the inertial reactions of matter in the bodies endowed with angular momentum.

The inclusion of this conceptual exception to Eulerian thought makes it possible to propose a new interpretation of inertial forces and to include these within the mechanical structure. It further suggests new structures of thought for rotational dynamics, other than those accepted to date for translational mechanics.

For example, it can be deduced that the centre of a body’s mass can modify its path owing to the effect of the inertial forces caused by rotations, given that the moment of the system’s centre of mass can be modified by means of a variation to the system’s internal, translational moment, but also by a variation to the system’s internal rotational moment.

This can also be understood as the possible transfer of rotational kinetic energy into translational kinetic energy and vice versa.