Question

Calculate the value of acceleration due to gravity at a place 3200 km above the surface of the earth

Answer 1

the height is comparable to radius of Earth so g' at that point is given as

g' = g [r/(r+h)]*2
= 10 (6400/9600)*2
= 10 (2/3)*2
=10 (4/9)
g' =4 aprox
please let me know if it is correct answer
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