There is an alternative approach to finding equations of motion.
Its evolution in time and space is governed by the equations of motion.
This is the equation of motion for the quantum state.
We next go on to solve these equations of motion.
The solution to this central problem is given by the fundamental equation of constrained motion.
The equation of motion gives only on a classical level.
The second term in this expansion is zero by the equations of motion.
When these forces are added, the equation of motion has the form:
In this framework, the above equations of motion have natural interpretations.
More effective equations of motion than Newton's laws are below.