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: Relativistic Mass Formula

  1. Jan 21, 2005 #1

    DB

    User Avatar

    I had some trouble with this question, but I would like to know if for these type of questions, is it safe to say that the velocity of a particle/object is equal to:

    [tex]v=\sqrt{\mid\frac{{m_0}^2}{{X_{m_0}}^2}-1\mid c^2[/tex]

    Where [tex]X[/tex] is equal to how many times larger it's relativistic mass is compared to it's rest mass.

    ??? just curious... :rolleyes:

    PS: \mid represents absolute value, but I think it would also work if:

    [tex]v=\sqrt {-(\frac{{m_0}^2}{{X_{m_0}}^2}-1)c^2}[/tex]
     
  2. jcsd
  3. Jan 21, 2005 #2
    you do not have a relativity problem, you have an algebra problem... check your algebra

    m=m_0 / sqrt (1-(v/c)^2)
    v=sqrt(1-(m_o/m)^2)c
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook