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Will a rocket need the same fuel and energy going 1 g upwards on Earth as a rocket 1 g in space?
Will the gravity of Earth change the result (making the rocket on earth need more fuel and energy than the one in space)? Or it is the same?
user293241
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Is acceleration quadratic or linear outside of a gravity field? [duplicate]
So as I understand it:
If you hit a wall at twice the speed you hit four times as hard?
I often ask people this and everyone says "at twice the speed you hit twice as hard".
$K=\frac{1}{2}mv^2$ is ...
