Originally Posted by Discuss Thrower
So I can't figure this out.
If the surface of the earth is 1G, and earths gravitational pull is less the further you are from earth's surface, does that mean earth's gravitional pull increases when you go further into the surface..?
Hogfarmer is sort of right. The traditional notion that the G field on earth gives 9.8 meters per second squared makes use of the fact ONE is outside the circumference of the earth and can therefore can place all of the mass as if it were at the center of the earth. And for a while g will increase if you are going underground. But once the amount of mass is significant over you compared to the center of the earth than g will drop. as you head to the center where there is "zero g." And technically I think the rebound back and forth through the earth should be close to orbital speed if the satellite was circling just above the holes (ignore air resistance and such)
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