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Acceleration is independent of speed. If the instantaneous velocity of an object is 12m/s and no other information is known, it is impossible to tell the acceleration. However, if the velocity does not change at all over a certain time interval, the acceleration over that time interval is 0m/s2. If other information is given, such as initial/final velocity, time, or displacement, then one of the the "famous five" equations may be used to determine the acceleration.

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Q: What is the acceleration of a skateboarder traveling 12m per sec?
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