I have been told that light rays seen from inside an accelerated elevator will seen as following a curved path, parabola. Like the image below. But what happens when a pulse of light entered into a non accelerating but uniformly going upward. It seemed to me that like the image below the pulse will entered at the top of the elevator and then after an amount of time light will move forward a bit. Meanwhile the elevator will go a bit upward. so when viewing from inside it will appear that the light rays have again followed a parabolic path! in a non accelerating elevator! I know that can't be true. Where am I going wrong?