Question

what is newtons third law plzz dont anwer i know it​

Answer 1

Answer:

Every action has an equal and opposite reaction

Explanation:

Examples of Newton’s third law are easy to find:

(a) As a professor paces in front of a whiteboard, he exerts a force backward on the floor. The floor exerts a reaction force forward on the professor that causes him to accelerate forward.

(b) A car accelerates forward because the ground pushes forward on the drive wheels, in reaction to the drive wheels pushing backward on the ground. You can see evidence of the wheels pushing backward when tires spin on a gravel road and throw the rocks backward.

(c) Rockets move forward by expelling gas backward at high velocity. This means the rocket exerts a large backward force on the gas in the rocket combustion chamber; therefore, the gas exerts a large reaction force forward on the rocket. This reaction force, which pushes a body forward in response to a backward force, is called thrust. It is a common misconception that rockets propel themselves by pushing on the ground or on the air behind them. They actually work better in a vacuum, where they can more readily expel the exhaust gases.

(d) Helicopters create lift by pushing air down, thereby experiencing an upward reaction force.

Birds and airplanes also fly by exerting force on the air in a direction opposite that of whatever force they need. For example, the wings of a bird force air downward and backward to get lift and move forward.

(e) An octopus propels itself in the water by ejecting water through a funnel from its body, similar to a jet ski.

(f) When a person pulls down on a vertical rope, the rope pulls up on the person