How fast velocity changes.
Usually measured as m/s2 ("meters per second squared")
Example: going from 5 m/s (5 meters per second) to 6 m/s in just one second is an acceleration of 1 meter per second per second
And two lots of "per second" becomes "per second squared"
So the acceleration is 1 m/s2
Usually measured as m/s2 ("meters per second squared")
Example: going from 5 m/s (5 meters per second) to 6 m/s in just one second is an acceleration of 1 meter per second per second
And two lots of "per second" becomes "per second squared"
So the acceleration is 1 m/s2
See: Velocity
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