Action and reaction forces are described by newton's first, second, third law of motion.

Action and reaction forces are described by newton's third law of motion.

According to newton's third law of motion, every action has equal and opposite reaction.  hence action and reaction exist in pair.

for example :

a book placed on table experiences force by the table in upward direction. In return, the table experience and equal amount of reaction force in down direction.

The action reaction forces are explained using the Newton's third law of motion.

Explanation:

The Newton's laws of motion explain the different aspects of the motion of a body.

First Law of motion:

The first law of motion (law of inertia) states that the body continues to be in its state of rest or motion until and unless an external force acts on the body to change its state.

Second Law of motion:

The second law of Newton states that the rate of change of momentum of a body is equal to the force applied on the body. It is also stated as the applied force is equal to the product of mass and acceleration of the body.

Third law of motion:

The third law of motion states that each and every action on a body has its equal and opposite reaction on the body. The reaction force is same in magnitude but opposite in direction as compared to the action force.

Thus, The action reaction forces are explained using the Newton's third law of motion.

Learn More:

1. The unit of the rotational velocity

2. Torque about the center of mass of the beam

3. The fraction of rope that can hang at the edge of table without slipping

Answer Details:

Grade: High School

Subject: Physics

Chapter: Laws of motion

Keywords:

newton, laws, motion, first law, second law, inertia, third law, rest, motion, momentum, rate, action, reaction, direction, opposite, acceleration, force, mass.