# Homework Help: Relativity Frames Of Reference

1. Oct 22, 2011

### astrozilla

1. The problem statement, all variables and given/known data
A frame is accelerating uniformly along the x-axis relative to an inertial frame (x,y,z) with acceleration a.Find the transformation between the frames given that the origins concide at t=0.

2. Relevant equations
The lorentz transformations cannot apply here ,but what equation has to be used ?

3. The attempt at a solution
I think a tensor equation is what we need because tensor equations i.e maxwell equations in tensor notation are frame invariant.

2. Oct 22, 2011

### mathfeel

Lorentz transformation applies just fine with instantaneous speed with respect to the observer. The boost from observer to the accelerating frame must be able to transform the four-acceleration properly, and the integration of four-acceleration over proper time gives you the four-velocity. Satisfying these two condition gives you the formula for the Lorentz transformation.