Question 5 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 × 10 8 m s −1 .
Class 9 - Science - Motion Page 102
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Here, we have, speed =3×108 ms−1=3×108 ms-1
Time = 5 minute
=5×60s=300=5×60s=300 second
We know that, Distance = Speed x Time
⇒ Distance =3×108 ms−1=3×108 ms-1
=1800×108 m=1800×108 m
=1.8×1011m
Time = 5 minute
=5×60s=300=5×60s=300 second
We know that, Distance = Speed x Time
⇒ Distance =3×108 ms−1=3×108 ms-1
=1800×108 m=1800×108 m
=1.8×1011m
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