Acceleration
rate at which the magnitude and/or direction of velocity changes with time / From Wikipedia, the free encyclopedia
Acceleration is a measure of how fast velocity changes. Acceleration is the change of velocity divided by the change of time. Acceleration is a vector, and therefore includes both a size and a direction. Acceleration is also a change in speed and direction, there is:
Speed (a scalar quantity) (uses no direction)
- Distance is how far you traveled
- Time is how long it took you to travel
- Speed is how fast you are moving - Speed = Distance / Time
Velocity (a vector quantity) (uses a direction)
- Displacement is how much your position has changed in what direction
- Velocity is how quickly your position is changing and in what direction
- Velocity = Displacement / Time
The measurement of how fast acceleration changes is called jerk.