During an experiment, a signalfrom a spaceship reached theground stati

1.	During an experiment, a signalfrom a spaceship reached theground station in five minutes.What was the distance of thespaceship from the groundstation? The signal travels at thespeed of light, that is, 3 × 10 ^8m s–1.
Answer» we KNOW that Speed =Distance /time Thus distance =speed ×time $3 \times 10 {}^{8} \times 5(60)$ since time is given in minutes hence we have to convert it into seconds $= 15 \times 60 \times {10}^{8}$ $900 \times {10}^{8}$ thus distance of spaceship from GROUND is $9 \times {10}^{10} m \\ or9 \times 10 {}^{7} km$