Isn’t going up with velocity greater than 9.81 m/s be enough to escape earth’s gravity?
In: Physics
Rockets don’t need to fly at that speed. Escape velocity is the speed you need to achieve *with no further input.*
So if your rocket was loaded onto a catapult, and simply flung into the air, it’d need to hit escape velocity to escape earth’s gravity.
If it had ‘super duper efficient light space fuel’ and could fire a rocket virtually forever, then it could escape going at 1 foot per hour.
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