
It is important that you realize that this formula is for an average
velocity. (notice the bar over the v)
No matter how small a span of time you measure, it is still possible for the object to change its velocity within that time.
The longer the time period measured, the more it leads to calculating an average velocity. |
The shorter the time period measured the closer it brings you to calculating an "instantaneous velocity". Only if the time period becomes zero would we truly have an instantaneous velocity. |
©1999 Science Joy Wagon