Final answer:
The correct answer to what the lane for picking up speed onto a highway is called is 'acceleration lane.' This term also relates to the rate of change of velocity, which is acceleration, applicable in scenarios such as a person standing up or a car increasing speed.
Step-by-step explanation:
The lane going onto a highway, used for picking up speed is called an acceleration lane. This terminology is used because it's a specific part of the road design that allows vehicles to increase their speed to match the flow of traffic on the highway before merging. This is analogous to a person standing up from a seated position or a car accelerating while driving, as both involve an increase in velocity, which is precisely what the acceleration lane facilitates for merging vehicles.
Examples of Acceleration
- Scenarios where acceleration occurs include:
- A person standing up from a seated position, where their velocity changes from zero as they start to stand up.
- A car accelerating while driving, which involves an increase in velocity as the car moves faster.
- Thus, when asked which situations involve acceleration, the answer would be c. both of the above.
Definition of Acceleration
The rate of change of velocity is called acceleration, which occurs when an object speeds up, slows down, or changes direction. If an object is slowing down between points d and e and speeding up between points a to d and e to h, it's experiencing negative acceleration (deceleration) and positive acceleration, respectively.