Question

During an experiment, a signal from a spaceship reached the ground station in five minutes. What was the distance of the spaceship from the ground station? The signal travels at the speed of light, that is 3 × 10⁸ m s^-1.

Answer 1

Speed of signal = 3 × 10⁸ m s^-1

Time taken by the signal to reach the ground station = 5 min = 5 × 60 s = 300 s

So, Distance of the spaceship from the ground station = Speed × Time = 3 × 10⁸ m s^-1 × 300 s

= 9 × 10¹⁰ m