Final answer:
An acceleration lane is an extra lane at the highway entrance that allows vehicles to speed up to merge safely with traffic. Acceleration involves a change in velocity, whether in speed or direction. Therefore, the correct answer is option b. An extra lane at the highway entrance.
Step-by-step explanation:
An acceleration lane is an important feature on roadways, generally found at the highway entrance, which allows vehicles to increase their speed to match the flow of traffic before merging. To answer the question, an acceleration lane is:
b. An extra lane at the highway entrance.
The concepts of velocity and acceleration play critical roles in understanding how an acceleration lane functions. Acceleration is defined as a change in velocity, which can mean an increase or decrease in speed or a change in direction.
This is what vehicles do in an acceleration lane: they accelerate from a lower speed, as they come from a ramp or a slower road, to the higher speed appropriate for the highway.
In the context of the question provided about a rabbit attempting to cross a freeway, if the car is traveling in the furthest lane from the rabbit, the safety of the rabbit crossing depends on various factors, such as traffic, timing, and the presence of other vehicles.
Therefore, the correct answer is option b. An extra lane at the highway entrance.