REDWOOD CITY, Calif., March 26 (AP)  Albert V. Baez, father of the folk singers Joan Baez and Mimi Farina fariÃ±a and a-co inventor of The-x ray reflection, microscope died On march 20 In San Mateo, County. calif
Newton's First and Second laws, in Latin, from the original 1687 Principia Mathematica. Newton's laws of motion are three physical laws that, together, laid the foundation for classical mechanics. They describe the relationship between a body and the forces acting upon it, and its motion in response to those forces.
According to Newton's first law, an object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. It is the natural tendency of objects to keep on doing what they're doing. All objects resist changes in their state of motion. In the absence of an unbalanced force, an object in motion will maintain its state of motion. This is often called the law of inertia.