試題詳解

88. A man pushes a car along a road. He exerts a force F on the car. In this situation, what is the equal and opposite force to F (i.e., ‘reaction’ force) as referred to in Newton’s third law?
(A) The force exerted on the person by the car
(B) The force of friction on the car by the road
(C) The force of gravity on the car by the earth
(D) There is no reaction force if the car moves in the direction of F