Question

Which of the following law applies if body 'A' exerts force on body 'B' and simultaneously body 'B' exerts the same force on body 'A'?

• A. Law of Inertia
• B. Law of Momentum
• C. Law of Reaction
• D. Law of Gravity

Answer 1

The Correct Option is C

The question addresses a classical concept in physics, especially relevant in the context of Newtonian mechanics. When body 'A' exerts a force on body 'B', and body 'B' exerts an equal and opposite force on body 'A', it directly illustrates Newton's Third Law of Motion. This law is also known as the Law of Reaction. The correct application can be explained as follows: 

1. Newton's Third Law states that for every action, there is an equal and opposite reaction.
2. Here, the force exerted by body 'A' on body 'B' is the action, while the force exerted by body 'B' on body 'A' is the reaction.
3. This pair of forces are equal in magnitude and opposite in direction.

Thus, the correct answer is the Law of Reaction.

Answer 2

Newton's Third Law of Motion, also known as the Law of Reaction, states that for every action, there is an equal and opposite reaction. This means that if one object exerts a force on a second object, the second object will exert a force of equal magnitude but in the opposite direction on the first object.

This law is fundamental in understanding how forces work in pairs. For example, when you push against a wall, the wall pushes back with an equal force in the opposite direction. Similarly, when a rocket expels gas out of its engines, the action of the gas being pushed downwards results in an equal and opposite reaction that propels the rocket upwards.

In conclusion, Newton's Third Law emphasizes the interaction between forces, demonstrating that forces always come in pairs, with every action generating an equal and opposite reaction.