^imagine *a* hole through the earth

if there was some how a hole through the earth(not big enough for the world to collapse) and we fall into it or throw an indestructable/unbreakable item into it...what would happen to it?

The force of gravity will pull it down through the center, after it passes the center, the force of gravity will pull it gain through the center but from the other side, then when it passes again the force of gravity will pull it through the center again but from the other side, and so on until the force of gravity starts to neutralize and the object will get closer and closer to the center, until it makes a full stop at the center.

lol i see, thanks

if you were at that center, do the forces pull you apart, compress you in, or would it be equal?

my science teacher did an exercise on this where if one were to drop a rock in a hole in the earth, it would go in the center of the earth or so she says

if there was a hole it would certainly make it easier for getting from one side to another

If you were at the abolute center, the forces of gravity will neutralize, simulating 0G

A common answer, but it ignores friction.

Most likely the object would burn up due to the air friction, as well as the extreme heat.

Harte

Yeah, but he said in inditructable object, unbrakabel object. Read his post again.

wouldnt it depend on which side was facing the sun and pull it more that way. after it is neutralized then other pulls of gravity would take effect. or am i wrong? im probably wrong =[

I thought the very centre of the earth, if you or an object were present in the centre, you'd be weightless.

Harte's point regarding friction should still be considered (not in the burning up sense) as the atmospheric pressure at great depth may prevent the object from being able to fall. I don't know the calculations but I suspect the hole would have to be a sealed vacuum for the object to be able to fall all the way to the centre and continue onwards, like a pendulum.