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Homework Help: Space ship traveling time from tail to nose help!

  1. Aug 9, 2010 #1
    1. The problem statement, all variables and given/known data
    question
    2hoiqol.jpg

    Solution
    mm50yc.jpg

    2. Relevant equations
    given in the problem


    3. The attempt at a solution

    i did the question exactly like how they did it. expect i did not add the length contraction of 923m to 1000m, then find time.. what i did was find the speed with respect to me which was 0.385c
    so d=vt t =d/v= 8.8*10-6 s

    can some one tell me where i went wrong.pls.

    thanks in advance
     
  2. jcsd
  3. Aug 9, 2010 #2

    Doc Al

    User Avatar

    Staff: Mentor

    You used the wrong distance. You found the time for the nose of Orion to go from the tail to the nose of Sirius, but that's not the same as for Orion to completely pass. Draw a diagram for yourself (or just study the one given).
     
  4. Aug 9, 2010 #3
    oh i see i got it thanks Doc
     
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