As a car moves forward on a level road at constant velocity,the net force acting on the tires is:
A)greater than the normal force times the coefficient of static friction.
B)equal to the normal force times the coefficient of static friction.
C)the normal force times the coefficient of kinetic friction.
D)zero.

Question

Quizplus · Accepted Answer

According to Newton's first law of motion, an object at rest or moving at a constant velocity will continue to do so unless acted upon by an external net force. Since the car is moving forward at a constant velocity, it means that there is no net force acting on the tires. Therefore, the correct answer is D) zero.

As a Car Moves Forward on a Level Road at Constant