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Light travels at 3.0 x 108 km/s. How far does light travel in 5 minutes?
A) 1.5 x 1010 km
B) 1.5 x 1011 km
C) 9.0 x 109 km
D) 9.0 x 1010 km

Respuesta :

3.0 x 10^8 km/s is how far light travels.
3.0 x 10^8 km/s x 60s is how far light travels in a minute
3.0 x 10^8 x 60 x 5 is how far light travels in 5 minutes, and you should get D as your answer.

Answer:

D)  [tex] 9*10^{10}[/tex] km.

Step-by-step explanation:

Given : Light travels at [tex]3* 10^{8}[/tex] km/s.

To find :  How far does light travel in 5 minutes.

Solution : We have given

Light travels in 1 second =  [tex]3* 10^{8}[/tex] km.

1 minute = 60 second.

5 minute = 60* 5 = 300 second .

Light travels in 5 minute = [tex] 300 * 3* 10^{8}[/tex] km.

Light travels in 5 minute =  [tex]3*10^{2}* 3*10^{8}[/tex] km.

                                         = [tex] 9*10^{10}[/tex] km.

Therefore, D)  [tex] 9*10^{10}[/tex] km.

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