Newtonian Mechanics
The initial stage in the development of classical mechanics is often referred to as Newtonian mechanics, and is associated with the physical concepts employed by and the mathematical methods invented by Newton himself. The system of mechanics is based upon Newton's laws of motion in which mass and energy are considered as separate, conservative, mechanical properties, in contrast to their treatment in relativistic mechanics. You may start with the three basic Newton's Laws of Motion, and learn all about Newtonian Mechanics from the following pages, which includes kinematics, circular motion, simple harmonic motion etc.