What is the size of the force you exert on Earth compared with the force Earth exerts on you as you stand on its surface?

Question

Quizplus · Accepted Answer

According to Newton's third law of motion, for every action (force) there is an equal and opposite reaction (force). Therefore, the Earth exerts a force on you equal in magnitude and opposite in direction to the force you exert on Earth. The size of the force depends on your mass and the distance between you and the center of the Earth, which is much larger than your mass, so the force you exert on Earth is very small compared to the force Earth exerts on you. Thus, the correct answer is D, the forces are the same.

What Is the Size of the Force You Exert on Earth