1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Time dilation problem

  1. Jul 24, 2007 #1
    Problem: How fast must a spacecraft travel relative to the earth for each day on the earth to correspond to 2 days on the earth?

    My solution:

    proper time = 1 day = 86400 seconds
    time on space craft= 2 days= 172800 seconds
    relavant equation: t=t(0)/(sqrt(1-v^2/c^2)

    I would plug in both the proper time and relative time into time dilation equation in order to find the speed of the spacecraft correct?
     
  2. jcsd
  3. Jul 24, 2007 #2

    G01

    User Avatar
    Homework Helper
    Gold Member

    The time on the space craft would be the proper time. Other than this you are correct.

    The proper time is the time between events measure by a clock that is present and at rest at both events. Here, the events are the two points mentioned in the spacecraft's journey. The only clock present and at rest at both of these events is the one on the ship.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Time dilation problem
  1. Time Dilation Problem (Replies: 1)

  2. Time Dilation Problem (Replies: 4)

  3. Time Dilation problem (Replies: 0)

  4. Time dilation problem (Replies: 6)

Loading...