* Acceleration is the rate of change of velocity. Velocity includes both speed and direction.
* Constant speed doesn't mean zero acceleration. If the skateboarder is traveling at 12 m/s in a straight line, their acceleration is 0 m/s². However, if they are turning, speeding up, or slowing down, they are accelerating.
To find acceleration, you need to know:
* Initial velocity: The skateboarder's speed and direction at the beginning of the time period you're interested in.
* Final velocity: The skateboarder's speed and direction at the end of the time period.
* Time: The duration of the time period.
Formula:
Acceleration (a) = (Final velocity (vf) - Initial velocity (vi)) / Time (t)
