We can find the acceleration of gravity at any height above the Earth’s surface from the formula:
here, "G" is the gravitational constant, "M_E=5.98 \\cdot 10^{24} kg" is the mass of the Earth, "R_E=6.38 \\cdot 10^6 m" is the radius of the Earth and "h" is the height above the Earth’s surface.
Let’s calculate the acceleration of gravity at "440 km" above the Earth’s surface:
Let’s compare (in %) the acceleration of gravity at "440 km" above the Earth’s surface to the acceleration of gravity at the Earth’s surface:
Answer:
Therefore, the gravity is 87.4% as strong as at the Earth’s surface.
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