Turnstile Example

This example explains how velocity changes as the volume of space it occupies changes. When the volume is greater the speed of the fluid is slower. As the volume narrows, the speed increases. For an example that is close to home, think about going through a turnstile or out a door of a room that is crowded with people. When you are waiting to go through the door, the speed at which you move is very slow. Enough to make you grow impatient, right? As you get closer to the turnstile/door, you begin to pick up speed and move quickly to an open space, where you move slower again (unless you are late for your event:)-