Newtons laws of motion

Newton's laws of motion Three laws published in 1687 by I.Newton concerning the motion of bodies:1.A body continues in a state of uniform rest or motion unless acted upon by an external force.2.The acceleration produced when a force acts is directly proportional to the force and takes place in the direction in which the force acts.3.To every action there is an equal and opposite reaction.

Newton's laws of motion three fundamental laws of classical physics, established by the English mathematician and physicist Isaac Newton (1642–1727). The first states that a body continues in a state of rest or uniform motion in a straight line unless it is acted on by an external force. The second states that the rate of change of momentum of a moving body is proportional to the force acting to produce the change. The third states that if one body exerts a force on another, there is an equal and opposite force (or reaction) exerted by the second body on the first.

Newton is considered the greatest single influence on theoretical physics until Einstein. In his Principia Mathematica (1687), Newton gave a mathematical description of the laws of mechanics and gravitation, and applied these to planetary motion. According to tradition, the idea of universal gravitation occurred to him while watching an apple fall from a tree; this story is given in Voltaire's Philosophie de Newton, where the source is said to have been Newton's step-niece, Mrs Conduitt.