The scientist famous for the laws of motion is Sir Isaac Newton. In the late 17th century, Newton formulated three fundamental laws that describe the relationship between a body and the forces acting on it, laying the groundwork for classical mechanics. His first law states that an object at rest stays at rest and an object in motion stays in motion unless acted upon by a force. The second law relates acceleration to force and mass (F=ma), while the third law asserts that for every action, there is an equal and opposite reaction. Newton's work revolutionized science and remains foundational in physics.