This last law states for every action there is an equal but opposite reaction. Forces always act in pairs . Action force : force acting in one direction Reaction force : force acting in the opposite direction This is an example of reaction force
Newton's 3rd Law
The law of inertia: The tendency of an object to stay at rest or to be in motion. For instance, image there being a car crash upon a wall, an unbalanced force acts upon the car abruptly deaccelerate it at rest, As the car moves the passenger moves as well.
States that the acceleration of an object depends on two things, the mass and the size and direction of the force acting on it.[F=MA orF=MG]