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Is this assuming that the car comes to a complete stop upon running out of fuel? If this is the case then it would need to stop before it runs out of fuel, because in space there is no friction so technically you only need to accelerate to 100kph and then cut the engines and you'll cruise at that speed until you hit something. Also, what is the car's acceleration upon completing refueling.
Another thing, how much fuel does it take to slow down from 100 kph to 0 kph upon reaching the moon, and if landing on it is in order, what is the acceleration due to gravity as if falls towards the moon. We already know that it is 9.8m/s/s falling towards Earth, but not many people know what the acceleration towards the moon is(this includes me).
How much does the car weigh, and does it lose weight upon refueling? If it does, it should use less fuel as it loses weight.
Is the goal for the car to reach the Moon's atmosphere or surface.
Is the car already at max speed at the beginning, or does it need to accelerate to it?
Sorry but with this many variables and assumptions I won't be able to answer the question. Could you better explain the problem?
EDIT: I am making an assumption that the car starts out in near Earth orbit rather than on the surface.
Last edited by Heraclius; 04-24-2009 at 03:00 AM.
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