Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Simple relativity

  1. Sep 28, 2010 #1
    1. The problem statement, all variables and given/known data
    in the 1960's,john and leonid raced from earth to the moon at relativistic speeds,according to the people on the moon, john finishes at t=8.67sec, while lenoid finishes 1.33s later. the distance from the moon to the earth is 1.3ls.

    according to lenoid, by how much did john beat him at the race


    2. Relevant equations

    time dilation ...l length contraction.

    3. The attempt at a solution

    im not sure how to start this question...hints please
     
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted