If you drill a tunnel in the US that goes thru the earths core, to the other side of the planet.?

Question

Lets say the tunnel is pressurized, oxegen available. and you jump in, are you goin to come out of the other side, elevate in the middle,perhaps get to the middle and keep falling up and down as gravity weakins you go up then reach a point where it gets stronger then you'l go down?

Answer 1

The middle of the Earth.

Your imaginary tunnel makes some big assumptions. Assuming that the tunnel doesn't collapse under the weight and that you find a way to keep it there through the liquid mantle and a way to drill through the core itself then if you put yourself at the center of the planet you will remain there thanks to the force of gravity.

If you jump into your imaginary tunnel then your momentum will carry you past the core, but not out of the tunnel. You will fall through the core continue on for a bit, and then fall through the core again. You will keep oscillating between each side with a shorter swing until finally you end up at the exact center of the earth.

The gravity will pull you toward the middle of the Earth.

Answer 2

you obtain some goofy solutions already. shall we anticipate that a tunnel must be built. There are 2 eventualities. First, in case you pass away the tunnel divulge to the ambience, air might suck itself into the tunnel till the stress equilibrated with the floor atmospheric stress. the middle of the tunnel might actually be decrease than sufficient stress to liquefy gasses interior the air. hence, you does not get a strategies in loose fall. in case you someway prevented this (hypothetically), and had typical floor air stress during the tunnel, you will possibly right this moment attain terminal velocity. At a hundred and eighty kph, it might take some thirty 5 hours to realize the middle. And it fairly is uncertain which you will possibly even overshot the middle by way of fact the gravitational means reaches equivalence there and drag forces will fairly triumph over your momentum. Now, for the 2nd case, if the tunnel have been a vacuum, you will possibly basically oscillate between the two poles continuously, till something else got here about. wish this permits.

Answer 3

As part of one of our upper-division physics problems, we had to show that the gravitational pull is proportional to the distance from the center of the earth in a perfectly spherical earth with uniform density as long as you stay below the earth's surface. Assuming no frictional losses, your motion would therefore be the same as if you were bobbing on a very long spring with the equilibrium position in the center of the earth.

In a real earth, the core is much denser than the mantle, which in turn is denser than the crust. You would still bob along, but the "spring" would now be nonlinear and your motion would no longer be quite sinusoidal. You would also be roasted and burned to a crisp long before you reached the core.