What is obtained by dividing displacement by time?

Dividing displacement by time yields average velocity. Average velocity is defined as the change in position (displacement) over a specified duration of time. It provides a measure of how quickly an object has changed its position in a straight line, factoring in both the distance covered and the direction of movement.

In this context, speed is the magnitude of velocity and does not consider direction, making it distinct from average velocity. Acceleration refers to the rate of change of velocity over time, while instantaneous velocity indicates an object's velocity at a particular moment. Therefore, average velocity is the accurate term for the calculation in question, as it explicitly takes displacement into account over a specific time interval.