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Velocity and Acceleration understanding

  1. Jan 25, 2006 #1
    If somethings velocity is 0 can the acceleration be 0? If so why?

    I have been trying to answer this and it seems I come up with different opinons from the text to the internet.

    Which is it??
     
  2. jcsd
  3. Jan 25, 2006 #2
    A body is deccelerating, then its velocity starts tending to zero. Agreed. Then after sometime the velocit would reach zero, I mean the instantaneous velocity, But the decceleration might continue and hence the instantaneous acceleration is not 0.
     
  4. Jan 25, 2006 #3

    Hootenanny

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    However, if a body is at rest (v=0) and no external force is acting, then by newton's first and second laws the acceleration must also be zero (f=ma). Therefore, yes it is possible but only if the body is at rest.
     
  5. Jan 25, 2006 #4
    Thanks for the insight my fellow physic friends.
     
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