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A driver sets his cars cruise control on a flat highway, causing the car to travel at a constant velocity. Which is true in this situation?

A. The cruise control causes the car to experience an unbalanced force.

B. The force of friction is balanced out by the forward force applied by the engine.

C. The force from the driver's foot is needed to keep the car from stopping.

D. The cruise control decreases friction.

Respuesta :

jacemorris04

Question: A driver sets his cars cruise control on a flat highway, causing the car to travel at a constant velocity. Which is true in this situation?

Answer: The force of friction is balanced out by the forward force applied by the engine.

question answered by

(jacemorris04)

lucainkviedma

Answer:

The correct answer is B.

Explanation:

Being on a flat road, the car moves at a constant speed because the friction force remains constant. By maintaining the cruising speed, the friction force is kept balanced with the forward force applied by the car engine. This causes the forward motion of the wheel to be maintained at a constant speed.

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