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

Appearing faster than light?

  1. Mar 24, 2006 #1
    If you have two people moving at opposite directions at nearly the speed of light, 9/10 for example, how would the other person appear to them? Would they seem to be moving faster than light?
  2. jcsd
  3. Mar 24, 2006 #2

    Tom Mattson

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

  4. Mar 25, 2006 #3
    (.9c+.9c)/(1+.81)=(1.8/1.81)c < c
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook