A rocket is moving at 1/4 the speed of light relative to Earth.At the center of this rocket,a light suddenly flashes.To an observer at rest in the rocket,
A) the light will reach the front of the rocket at the same instant that it reaches the back of the rocket.
B) the light will reach the front of the rocket before it reaches the back of the rocket.
C) the light will reach the front of the rocket after it reaches the back of the rocket.

Question

Quizplus · Accepted Answer

According to the principle of relativity, the speed of light is constant for all observers, regardless of their relative motion. Therefore, the observer at rest in the rocket will see the light reaching both the front and back of the rocket at the same instant, as the distance traveled by the light is the same in both directions. This is because the observer is also moving at the same speed as the rocket, and so the light will appear to be moving away from them at the same speed in both directions.

A Rocket Is Moving at 1/4 the Speed of Light