The distinction of some physical concepts How to distinguish the concepts of velocity and instantaneous velocity? Can you put it in a specific example?

The distinction of some physical concepts How to distinguish the concepts of velocity and instantaneous velocity? Can you put it in a specific example?


Taking the train operation as a comparison, it takes 20 seconds for the train to run 2000 meters, and the average speed is 100 meters per second. At the same time, the speed is about 100 meters (because of the difference between displacement and distance, one has direction, the other does not, so the speed is about equal to the average speed). The speed has no direction. For example, the speed of the train traveling eastward is 100 meters per