Why is there a velocity associated with escaping from earth’s atmosphere? If an object were to fly from the surface of the planet at 1 m/s without any change in acceleration would it not eventually end up in space?
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Basically you are trying to overcome the pull of gravity, an orbit is going fast enough not to fall back down to Earth by having enough horizontal velocity to keep missing the Earth as gravity pulls you back down escape velocity means that you are moving fast enough not to fall back down.
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