Question

Imagine that a car is traveling from your left to your right at a constant velocity. Which two actions could the driver take that may be represented as (a) a velocity vector and an acceleration vector both pointing to the right and then (b) changing so the velocity vector points to the right and the acceleration vector points to the left?

a) Bold: (a) Increase speed, (b) Decelerate
b) (a) Decelerate, (b) Increase speed
c) (a) Change direction to the left, (b) Increase speed
d) (a) Maintain constant speed, (b) Change direction to the left

Answer 1

The driver can (a) increase speed and (b) decelerate.

Step-by-step explanation:

The two actions the driver could take that may be represented as (a) a velocity vector and an acceleration vector both pointing to the right and then (b) changing so the velocity vector points to the right and the acceleration vector points to the left are:

1. (a) Increase speed: By pushing down on the accelerator, the driver can increase the speed of the car. This will result in both the velocity vector and the acceleration vector pointing to the right.
2. (b) Decelerate: By pushing down on the brakes, the driver can decrease the speed of the car. This will result in the velocity vector still pointing to the right, but the acceleration vector pointing to the left.