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Time Dilation , 100m dash

  1. Aug 30, 2009 #1
    1. The problem statement, all variables and given/known data
    An athlete has learned enough physics to know that if he measures from the earth a time interval on a moving spacecraft, what he finds will be grater than what somebody on the spacecraft would measure. He therefore proposes to set a world record for the 100m dash by having his time taken by an observer on a moving spacecraft. Is this a good idea?


    2. Relevant equations



    3. The attempt at a solution

    An athlete has learned enough physics to know that if he measures from the earth a time interval on a moving spacecraft, what he finds will be grater than what somebody on the spacecraft would measure.

    WUT?
     
  2. jcsd
  3. Aug 30, 2009 #2

    kuruman

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    To do this problem, first you need to have some understanding about time dilation and length contraction. It would be a good idea to get background information up on these subjects. That's wut.
     
  4. Aug 30, 2009 #3
    Is the observer on the ship taking the time measurement using a clock on the ship or a clock on the ground?
     
  5. Aug 30, 2009 #4

    kuruman

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    The observer on the ship measures time with a clock that is at rest with him/her.
     
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