Final answer:
An 'N' after the odometer reading on a title does mean the reading is not actual; the odometer measures distance, not displacement, and the speedometer measures speed, not velocity.
Step-by-step explanation:
TRUE: An "N" after the odometer reading on the title indicates that the odometer reading is not actual. Odometers are devices that measure the total distance a vehicle has traveled, which is not the same as displacement. Displacement refers to the overall change in position of an object and includes the direction of that change. Since odometers accumulate mileage regardless of direction, they do not provide displacement information.
The speedometer in a car measures speed, which is the rate at which an object covers distance. Speed is a scalar quantity, meaning it only has magnitude and not direction. This differs from velocity, which is a vector quantity that includes both the rate of change of position and the direction of that change.