Question

If the action force acting on a body is gravitational in nature, the reaction force -

• A. may be a force of any origin.
• B. may be a gravitational or contact force.
• C. may be a contact force.
• D. must be gravitational too.

Answer 1

The correct option is D must be gravitational too.

Gravitational force is the force of attraction between two bodies with some mass, which is a pulling force in nature.

According to Newton's third law, we can state that if any force P is applied on a body, it brings a reaction force that will be equal to the magnitude of force P but opposite in direction.

Also, the nature of the reaction force and applied force P will be the same.

It is given, the nature of action force acting on a body is gravitational.

Therefore, the reaction force's nature must be a gravitational force.

Hence, option $\left(B\right)$ is the correct answer.