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

Limiting Speed

  1. Apr 7, 2008 #1
    Electrical means are the only way to achieve high speeds of a particle. Is it possible that you reach a limiting speed when energy radiates out as fast as it is put in? How is radiated energy accounted for in the total mass?

    There really is no non-electrical way to significantly accelerate a body other than ejecting a part of the mass, in which case the mass is not constant. I don't think a compressed spring or cannon will get you up near the speed of light. The speed a body reaches when it accelerates toward the earth from infinity is escape velocity, about 17000 mph. By the time you get near the speed of light by expelling mass you don't have any mass left.
     
    Last edited: Apr 7, 2008
  2. jcsd
  3. Apr 7, 2008 #2

    clem

    User Avatar
    Science Advisor

    Particle acceleration in a synchroton is limited by the energy at which energy input equals energy radiated.
    Particles also achieve high speeds in decay of heavier particles.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Limiting Speed
  1. Speed limit (Replies: 20)

  2. Speed of light limit (Replies: 2)

Loading...