1. The problem statement, all variables and given/known data A rod of rest length L0 = 10.4 m moves with a speed v = 0.42c along the x axis. The rod makes an angle of q0 = 66.1° with respect to the x' axis (primed frame is moving with the rod). What is the length of the rod as measured by a stationary observer? 2. Relevant equations L=L1*(1/gamma) 3. The attempt at a solution I have tried this several times, but can't seem to get it right. L0=L1=10.4 gamma=(1-.422)-.5 Just solved for L..but didn't work.