An object is falling on Earth close to its surface.Earth exerts a force of W magnitude on the object.The magnitude of the force that the object exerts on Earth is
A)greater than W.
B)less than W.
C)equal to W.
D)zero.
E)cannot be determined without knowing the relative masses of the object and the earth.

Question

Quizplus · Accepted Answer

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. Therefore, the magnitude of the force that the object exerts on the Earth is also W.

An Object Is Falling on Earth Close to Its Surface