If a rocket is launched into space in attemt to break orbit and continue into deep space, how do you determine when the rocket "breaks" the gravitational pull of the earth? Since gravity extends infinatly, how do you know when you are at a point where if you kill the engines, it will continue to travel into space? Gravitational strength decreases exponentially right? So would the point be at a certain distance from earth at a certain velocity so as the limit of the velocity function as displacement approaches infinity is nonzero?(adsbygoogle = window.adsbygoogle || []).push({});

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# The physics of putting a rocket into space

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