Question

If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be A. equal to the weight of the car. B. less than the force of friction exerted upon the car. C. equal to the force of friction exerted upon the car. D. greater than the weight of the car.

Answer 1

the correct answer is c

Answer 2

Answer:

C. equal to the force of friction exerted upon the car.

Explanation:

If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be equal to the force of friction exerted upon the car.

If an object has a constant velocity, this means that there is no net force acting upon it. In other words, the forces acting upon it are balanced. When a car is traveling, the force of friction caused by the road and the air opposes its motion. For the car to keep a constant velocity, a force must be applied to exactly balance the force of friction.