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 station? The signal travels at the speed of light, that is, 3 ×10⁸ m/s.

-Shresthi Goyal, Subject Matter Expert at Edumarz

Answer:

Speed=3×10⁸ m/s

Time = 5 minutes

          =5×60 seconds

          =300 seconds.

Distance =?

Speed = (Distance)/(time)

Distance= speed × Time         

               = 3×10⁸ ×300

               =9×10¹⁰ m