What is meant by third law of motion explain with examples?
When object A exerts a force on object B, object B exerts the
same force on object A, but in the opposite direction. That means,
if you hit a wall with a force of, let's say 50 N, the wall will
hit you back with the same force. If you stand on the floor and
exert a force of 1000 N, the floor exerts the same force on you, so
there is no resultant force, and that is why you stand on it.