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 A) c/4. B) c/2. C) c. D) 3c/4. E) c/1 - 1/4)^1/2.

Question

Quizplus · Accepted Answer

According to the principles of special relativity, the speed of light is always measured as c in any inertial frame, regardless of the relative motion of the source and observer.

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