We claim that the earth's gravity at its poles is slightly greater than that at its equator. However, I feel justification for it is not trivial but somewhat above the level of even AP Physics C; it will require quite a bit of calculus! Would you agree?
~ Hasan Fakhruddin
Instructor of Physics
The Idiana Academy for Science, Mathematics, and Humanities
BallState University
Muncie, IN 47306