A large car drags a small trailer in such a way that their common speed increases rapidly. Which tugs harder on the other?
A) The car tugs harder on the trailer than vice versa.
B) The trailer tugs harder on the car than vice versa.
C) Both tug equally on each other.
D) The trailer exerts no force on the car at all.
E) There is no way to tell.

Question

Quizplus · Accepted Answer

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. This means that the force with which the car pulls on the trailer is equal in magnitude and opposite in direction to the force with which the trailer pulls on the car.

A Large Car Drags a Small Trailer in Such a Way