Inertia force is basic and important concept for Newtonian mechanics,a good many document consider:body receive a affece of inertia force for get acceleration;offset of inertia force and gravitation for a distant point or place.

The Status of Newton Mechanics in Physics;

The paper applies Newton mechanics principle to annotate imbalance development tactics and full cooperation in underdeveloped regions.

A dynamic model was established based on Newtonian mechanics theory and analysis was made on vibrating characteristics in time and frequency domain to the modes of constant flow and pressure.