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CBSE Class 9 Answered

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 ms-1.
Asked by Topperlearning User | 10 Jun, 2016, 09:35: AM
answered-by-expert Expert Answer

Given that, Speed = 3 × 108 m/s

Time taken = 5 × 60 s = 300 s

We know that Distance = Speed × Time

                                   = 3 × 108 m/s × 300 s

→Distance = 900 × 108 m = 9 ×1011 m

 

Answered by | 10 Jun, 2016, 11:35: AM

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