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, $3 \times 10^{8} m s^{- 1}$

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Solution

Given, speed = $3 \times 10^{8} m s^{- 1}$ and time $= 5 m i n = 5 \times 60 s = 300 s$
We know, distance $= s p e e d \times t i m e$
$∴$ Distance $= 3 \times 10^{8} \times 300 = 9 \times 10^{10} m$
So the distance of the spaceship from the ground station is $9 \times 10^{10} m$

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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, 3×108ms−1

Given, speed = 3×108 ms−1 and time =5 min=5× 60 s=300 s We know, distance =speed×time ∴ Distance =3×108×300=9×1010 m So the distance of the spaceship from the ground station is 9×1010 m

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, $3 \times 10^{8} m s^{- 1}$

Given, speed = $3 \times 10^{8} m s^{- 1}$ and time $= 5 m i n = 5 \times 60 s = 300 s$
We know, distance $= s p e e d \times t i m e$
$∴$ Distance $= 3 \times 10^{8} \times 300 = 9 \times 10^{10} m$
So the distance of the spaceship from the ground station is $9 \times 10^{10} m$