Contributor to mechanics – Newton

Newton is a well-known figure who discovered gravity. It has pioneered mechanics and made unprecedented contributions to the development of mechanics. Let's analyze Newton's three laws:

Newton's first major law (1): An object will remain stationary or in a uniform linear motion without being affected by external forces. It reflects that the object must have an external force from rest to motion. That is to say, it is assumed that the object either remains stationary or maintains a uniform linear motion state without any external force. The reason why we can move on the ground is due to the friction between the shoes and the ground. (Friction is an external force)

Newton's second law (2): The magnitude of the external force received by an object is equal to the product of its mass and acceleration, and the direction is the same as that of the external force. Expressed as a formula, it is F=m.a

With this formula we can calculate the magnitude of the external force on the object.

Newton's third law (3): The force is equal in magnitude to the reaction force, in opposite directions, acting on two different objects and in a straight line. It is mainly distinguished from the equipoise force. Their main difference is that the equilibrium force acts on one object, while the force and the reaction force act on two objects. For example, the gravitational force on an object and the supporting force on the ground facing the object are a pair of balancing forces, while the thrust and reverse thrust forces are a pair of balancing forces.

Newton's three laws opened the door to mechanics and made outstanding contributions to the later study of mechanics. Newton's three laws are the basis of Newtonian mechanics, and I hope to help everyone understand.