1. The hard core of Newtonian physics is comprised of Newton's laws of motion plus his law of gravitational attraction.

2. Newton's law of motion apply to all things on the earth.

3. Between them follows makes the Newton's law of motion related rule which the circular motion object must follow.

4. For example, Newton's Law of motion is incorrect when object is moving at near speed of light.

5. Newton's law of motion forms the foundation of classical mechanics.