1. Sep 23, 2005 #1

   mntb

   

   derivating a from v (lorentz transform)
   u is the velocity in the +x direction
   u=(u-v)/(1-vu/c^2)
   du? how do you du the right side of the eq?

    

   mntb, Sep 23, 2005
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3. Sep 24, 2005 #2

   selfAdjoint

   

   Staff Emeritus

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   What are you taking the derivative with respect to? Note that the u-time in the observed frame is not the same as the v-time in the reference frame. If you want your derivative to be Lorentz invariant you have to differentiate with respect to proper time.

    

   selfAdjoint, Sep 24, 2005

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