A horse pulls a cart with force $\vec { F }$ As a result of this force the cart accelerates with constant acceleration. The magnitude of the force that the cart exerts on the horse
A) less than the magnitude of $\overrightarrow { \mathrm { F } }$
B) is zero newtons.
C) greater than the magnitude of $\vec { F }$
D) equal to the magnitude of $\overrightarrow { \mathrm { F } }$
E) cannot be determined without knowing the mass of the horse.

Question

Quizplus · Accepted Answer

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. Therefore, the force that the cart exerts on the horse is equal in magnitude and opposite in direction to the force $\vec { F }$ that the horse exerts on the cart.

A Horse Pulls a Cart with Force F⃗\vec { F }F

A Horse Pulls a Cart with Force $\vec { F }$