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Special relativity help: meter stick moving at 0.60c

  1. Oct 21, 2005 #1
    A meter sticks moves with velocity 0.60c relative to an observer. The observer measures the length of the meter stick to be L. The problem states that 0.80<L<1.0 m must always be true.
    So far, I have determined that
    Gamma = 1/sqrt(1-0.60c^2/c^2) = 0.8.
    What I don't understand is why there is a range. If the meter stick is 1 m when it is not moving and 0.8m when it is moving at 0.80c, why is there a range for the length?
  2. jcsd
  3. Oct 21, 2005 #2


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    Is velocity a vector?
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