Science

A human-operated spaceship reaches the moon in 3 days. The moon is about 386,400 km from Earth. Mars, our closest planetary neighbor, is, at its closest, about 140 times farther away from us than the moon if Mars stays in place. Assuming a very simple model of the solar system, about how long would it take that same spaceship to reach Mars?

A: About 22.5 years
B: About 2.5 years
C: About 1 year
D: About 7.5 years

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  1. 3 days to reach the moon. 140 times that to reach mars. Convert days to years.

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    DrBob222
  2. But how do I get the days?

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  3. I told you. 3 days to reach the moon. 140 times that to get to mars = days to mars. days to mars/365 = yrs to mars.

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    DrBob222
  4. DrBob222 you are not helping none of this helps

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  5. hmm well i used a calculator for the kilometers

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  6. and its 54096000

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  7. oh i found it! its about 1 year. so, this thread may end.

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  8. about 1 year is the answer!!

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  9. The answer is one year.

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  10. i have the answer its 7.5 years
    also friend me on roblox

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