For this situation, I push on a heavy chair. Suppose I push moderately on the chair, and this time the chair does move. Then the strength of the force the chair exerts on me is
A) less than the force I exert on the chair.
B) equal to the force I exert on the chair.
C) greater than the force I exert on the chair.
D) zero.

Question

Quizplus · Accepted Answer

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. In this situation, I am exerting a force on the chair to move it, and hence the chair is exerting an equal and opposite force on me. Therefore, the strength of the force the chair exerts on me is equal to the force I exert on the chair.

For This Situation, I Push on a Heavy Chair