Two flashes of light occur simultaneously at t - 0 in reference frame S, one at x =0 and the other at x = 600 m. They are observed in reference frame S, which is moving at 0.95c in the positive x direction. The origins of the two frames coincide at t= 0 and the clocks of S' are zeroed when the origins coincide. In S' the coordinate where the leading edges of the two light flashes meet and the time when they meet are: O 1900 m, 0.16 μs O 15 m, 0.050 µs O 300 m, 1.0 μs O 585 m, 1.95 us O 48 m, 0.16 us

Two flashes of light occur simultaneously at t - 0 in reference frame S, one at x =0 and the other at x = 600 m. They are observed in reference frame S, which is moving at 0.95c in the positive x direction. The origins of the two frames coincide at t= 0 and the clocks of S' are zeroed when the origins coincide. In S' the coordinate where the leading edges of the two light flashes meet and the time when they meet are: O 1900 m, 0.16 μs O 15 m, 0.050 µs O 300 m, 1.0 μs O 585 m, 1.95 us O 48 m, 0.16 us