Question

Force acts alone or in pair, what is its concept?​

Answer 1

• According to Newton's third law, for every action force there is an equal (in size) and opposite (in direction) reaction force.
• Together, these two forces exerted upon two different objects form the action-reaction force pair.

Answer 2

Answer:

according to Newton's third law of motion, force always occur in pair

ie. for a action force there is always a reaction force in opposite direction