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Velocity physics question

  1. Dec 11, 2006 #1
    ok, so since velocity has two parts, speed and direction, and since acceleration is defined as a change in velocity, can acceleration be either a change in speed or a change in direction?
  2. jcsd
  3. Dec 11, 2006 #2
    a change in direction is always an acceleration. A change in speed is always an acceleration.

    If one (or both) of those things is changing then there is an acceleration.
  4. Dec 11, 2006 #3


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    Take a look at this, specially at paragraph #3: http://www.math.lsa.umich.edu/~glarose/classes/calcIII/web/14_4/.
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