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The acceleration due to gravity is
a = GM/r^2
Where M is the mass of the Earth, r the distance from the center of gravity, and G the universal gravitational constant.
The rate of change of a with respect to r is
da/a = -2 dr/r
So if you ask how much r has to change for a to change by, say, 1% you find r has to change by 1/2%.
The radius of the Earth is about 6000 Kilometers, so for a to change 1% the launcher would need to be 1/2% of 6000, or 30Km tall.
Kind of unlikely....
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The acceleration due to gravity is
a = GM/r^2
Where M is the mass of the Earth, r the distance from the center of gravity, and G the universal gravitational constant.
The rate of change of a with respect to r is
da/a = -2 dr/r
So if you ask how much r has to change for a to change by, say, 1% you find r has to change by 1/2%.
The radius of the Earth is about 6000 Kilometers, so for a to change 1% the launcher would need to be 1/2% of 6000, or 30Km tall.
Kind of unlikely....