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Homework Help: Stuck with a relativity question.

  1. Oct 16, 2016 #1


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    1. The problem statement, all variables and given/known data
    In a certain inertial frame two light pulses are emitted a distance 5 km apart and separated by 5 µs. As observed from another frame, which is travelling parallel to the line joining the points where the pulses are emitted at a velocity v with respect to this frame, the pulses are simultaneous. Find v.

    2. Relevant equations

    3. The attempt at a solution
    i know this should be very simple, but i am so stuck!
  2. jcsd
  3. Oct 16, 2016 #2


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    Science Advisor

    You need to make more of an effort before we can help. What have you tried? Try drawing a space-time diagram of the situation, showing the light pulses.
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