Physics Help Forum calculating the velocity of a reference frame

 Special and General Relativity Special and General Relativity Physics Help Forum

 Jan 7th 2010, 06:01 PM #1 Junior Member   Join Date: Nov 2009 Posts: 8 calculating the velocity of a reference frame OK this question has me stumped ...again well if you have two reference frames S & S' with dimensions x, y, z, t & x', y', z', t' respectively if you know the values of just x & t' is it even possible to calculate the velocity of the reference frame S' from the perspective of S? i tried this V = x/t V = x/(\lamba)(t' + Vx'/c^2) then sub in x' as its still unknown V = x/(\lamba)(t' + V(\lamba)(x - Vt)/c^2) but now youve just added t back into the equation i seem to just get stuck in an endless loop just making the equation more and more complicated. am i doing it wrong or is it just a trick question?

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