Question

Question #ddb3c

Answer 1

Newton's Third Law is defined as for every action there is an equal and opposite reaction.
Lets say you push a table with 5 newtons `(N)`, but the table also push you back with 5`(N)`.

This means in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object.
If you want to read more on this go to
http://www.physicsclassroom.com/class/newtlaws/Lesson-4/Newton-s-Third-Law