In Newtons famous event that why, apple always falls to the Earth. Suppose the weight of the apple is 2.5 N. Then calculate the force that does the apple exert on the Earth and also mention the direction of the calculated force?

2.5 N (Centrifugal direction)

Explanation:

According to the Newton's Third Law, there is a reaction when an action exist. The reaction force has the same magnitude but opposite direction. Therefore, the force that apple exerts on the Earth has a magnitude of 2.5 N and a centrifugal direction.