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Negative Velocity

  1. Jul 31, 2009 #1
    How do you know that a object's velocity is 0.00 or below meaning that is not moving at all?
     
  2. jcsd
  3. Jul 31, 2009 #2

    Pengwuino

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    You're confusing speed and velocity. Velocity is a vector, it has direction and magnitude. The speed is that magnitude. Speed is strictly positive, while velocity can be negative.
     
  4. Jul 31, 2009 #3
    But when I get the length of the velocity vector, it can never get to negative and I think that the lowest is 1?
     
  5. Jul 31, 2009 #4

    Pengwuino

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    The length is the magnitude, aka the speed, which can never be negative (of course it can be 0, that just means theres no movement).
     
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