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jb646
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Homework Statement
Determine how much greater the gravitational field strength, g, is at the pole than at the equator. Assume a spherical Earth. If the actual measured difference is Δg = 52 mm/s2, explain the difference.
Homework Equations
g=G*m1*m2/r^2
The Attempt at a Solution
The problem I'm having is understanding the problem. If we assume a spherical earth, then the radius would be the same everywhere and in turn so would g. I have looked up the actual gravitational difference and it is roughly 50 mm/s^2, so am I supposed to just say that it would be no greater and the difference of 50 mm can be attributed to the fact that the Earth is indeed not spherical, or is there a concept I am not understanding...
Thanks for any help