Your space vehicle is traveling directly away from Earth with a speed c/2, where
C = 3 * 10⁸ m/s is the velocity of light. A light signal is sent from Earth. The speed with which this light passes your vehicle, as measured by the crew, would be

Question

Quizplus · Accepted Answer

According to the principles of special relativity, the speed of light in a vacuum is always measured to be c, regardless of the relative motion of the source and the observer.

Your Space Vehicle Is Traveling Directly Away from Earth with a Speed