The total distance traveled divided by the total time taken.

Formula:

Average Speed = Total Distance / Total Time

Units:

* Speed is typically measured in meters per second (m/s) or kilometers per hour (km/h).

* Distance is measured in meters (m) or kilometers (km).

* Time is measured in seconds (s) or hours (h).

Important Note:

Average speed is a scalar quantity, meaning it only has magnitude (size), not direction. It does not take into account changes in direction or velocity. For example, if a car travels 100 km in 2 hours, its average speed is 50 km/h, even if it stopped or changed direction during the journey.