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: Time Dilation

  1. Aug 10, 2007 #1
    A particle lives for a short time before breaking apart into other particles. Suppose it is moving at a speed of 0.996c, and an observer who is stationary in a laboratory measures the particle's lifetime to be 3.00 10-8 s.
    What is the lifetime according to a hypothetical person who is riding along with the particle?

    3. The attempt at a solution
    I tried
    where t=3.00 10-8s and i'm finding t(0) proper.
    my answer is 3 10-9 which is wrong. what am I doing wrong?
  2. jcsd
  3. Aug 10, 2007 #2
    i have forgotten this stuff, but try multiplying it if dividing doesn't work
  4. Aug 10, 2007 #3

    Doc Al

    User Avatar

    Staff: Mentor

    I suggest carrying more significant figures in your answer.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook