The famous scientist who proposed the laws of motion is Sir Isaac Newton. In his work published in 1687 titled "Philosophiæ Naturalis Principia Mathematica," Newton introduced three fundamental laws that describe the relationship between a body and the forces acting on it. The first law, often called the law of inertia, states that an object at rest will stay at rest, while an object in motion will continue in motion at a constant velocity unless acted upon by an external force. The second law establishes that force equals mass times acceleration, and the third law states that for every action, there is an equal and opposite reaction.