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If you've got the fuel and the patience to keep it up long enough, then your speed

doesn't matter. Just keep at it, and eventually you'll get out there.

But if the amount of fuel you can carry is limited, then you want to use every ounce

of what you can carry in a way that will do you the most good in your effort to break

free of Earth. That means you want to get a short, massive boost, and reach 7 miles

per second by the time you're out of the atmosphere. At that moment, you can be

out of fuel, because at that speed, gravity can no longer pull you back to the surface.

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13y ago

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