When push-starting your car, what is the 3rd Law partner to the friction force you exert on the ground?

A) The horizontal force you exert on the car.

B) The normal force you exert on the ground.

C) The normal force the ground exerts on you.

D) The friction force the ground exerts on you.

C

Explanation:

Newton third law states that to every action force there is an equal and opposite reaction force. In the case of the car, the person pushes against the ground in other to get the car to move and consequently the ground exert a normal force opposite to the push on the person.