Question

What is Newton's Law? What are the three stages of Newton's Law?

Answer 1

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 said forces. They have been expressed in several different ways over nearly three centuries, and can be summarised as follows.
First law: When viewed in an inertial reference frame, an object either remains at rest or continues to move at a constant velocity, unless acted upon by an external force.
Second law: The vector sum of the external forces F on an object is equal to the mass m of that object multiplied by the acceleration vector a of the object: F = ma.
Third law: When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.

Answer 2

Newton's Law of Motion are the three laws which describes the relationship of force acting on a body

Newton's first law of motion

According to this law a body at rest will remain in rest and body in motion will remain in motion until an external force is applied.

It is based on inertia. Like inertia of rest inertia of motion and inertia of direction

Newton's second law of motion according to this law the rate of change of momentum of a body is directly proportional to the force applied over it.

F=momentum/ time

Newton's third law of motion according to this law to every action there is a equal and opposite reaction.

Due to which we can swim walk run etcetera