Newton’s law
Newton’s law 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 responsible to those forces .the motion of an aircraft through the air can be explained and described by physical principals discovered over 300 years ago by Sir lsaac Newton.Newton worked in many areas of mathematics and physics .He developed the theories of gravitation .in was developed in 1966.
There are three laws of newton are shows :
First Law
Every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia. The key point here is that if there is no net force acting on an then the object will maintain a constant velocity. If that velocity is zero, then the object remains at rest. If an external force is applied, the velocity will change because of the force.
Second Law
How the velocity of an object changes when it is subjected to an external force. The law defines a force to be equal to change in momentum per change in time. Newton also developed the calculus of mathematics, and the changes expressed in the second law are most accurately defined in differential forms For an object with a constant mass m, the second law states that the force F is the product of an object's mass and its acceleration a
F=m*aThird Law
Every action in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal force on object A. Notice that the forces are exerted on different objects. The third law can be used to explain the generation of lift by a wing and the production of thrust by a jet engine.