在非慣性參考系觀測光速會怎樣？

The speed of light is not constant when measured in a non-inertia reference system.

An accelerating system can be regarded as a reference system with a G-force (gravitational force). It can be shown that the speed of light increases with the increase in "gravitational potential"

You may refer to the following web-page for details:

http://www.speed-light.info/speed_of_light_variable.htm