Theoretically, if you dug straight through the earth, at what point would you stop digging down and start up?
921247
well somewhere in the middle you might become weightless as you would be in the center of a spinning mass. but most likely you would get to a point that the gravity would push you back. just like on a merry go round getting to the center is actually pretty hard.
249726
You can't dig a half a hole. Any hole is a whole hole.
630342
Let's imagine that there's not lava inside, then as you ascend, you would slowly slowdown, at the center of the planet you wopuld experience zero-gravity, then if you push yourself towards the south pole, you would have to climb out --- you would not be falling, but climbing now.\n\nSo you would come out head-first.\n\nBut it is technically impossible, because of the heat and the pressure at great dephs.
792554
This is a great question and has real potential. Yes, it's true that the earth doe's indeed move beneath you even though you won't see or notice it. I jumped and timed myself and found that my time in the air was .5 sec. I tried to start and stop my stop watch as fast as I could and could only do it in .17 sec. Yours was really a fast jump. When jumping you increase the distance of your orbit from the center of the earth, so to land exactly back in the same point, you need a slight increase in speed going up and decrease coming down and only this would satisfy no earth movement beneath you when you jumped, providing that you jumped in the same direction as the earth's rotation. The speed calculations decease as you get closer to the north or south pole.
1047844
nice question  theoretically you would be pulled in every outward direction, which would be interesting.
9800
Well, I certainly wouldn't have to worry anymore about whether or not I turned the coffee maker off! Seriously, if the Earth stopped spinning on it's axis, there would be much larger factors at work & I'd be looking for the quickest way to get out of what was going to become an extremely unstable area of space! After all, assuming that I had a craft capable of long range travel, it might be left up to myself & whomever else might also be out on other missions to find a way to carry on the human race :)\n\nWhen I read the question the first thing I thought of was, "Pause.......BOOM!"
244345
If its an 'ideal' problem, the rock wouldn't land anywhere.\ninstead it would execute a simple harmonic motion ( same as the behaviour of spring-block system with gravity providing the elastic part and mass of rock providing inertia)with amplitude equal to the radius of the earth.\n        but , if the air from the atmosphere were to gush into the tunnel then the rock will experience a drag and after a ong time it will come to rest at the center.\n        to be more precise, if i drop a rock from singapore to mexico (i.e. along the equatorial plane) , the rock will move to side abd hit the wall of the tunnel(because of the pseudoforce called cariolis force)during which it will lose lot of energy and come to rest quickly at the center.
302056
It all depends on whose point of view you are going from.  If you go from the person digging the hole, then they would say they are digging down.  If you go from someone at the North Pole, then they would say that the digger is going up.  Someone on the equator would say that the digger is goibng across.\n\nIt's all relative.
315970
Dig a big hole under the U.S. and watch it fall into the ocean. Problem solved.
1119562
When you dig deep into the earth/mud, you will hit ROCK - that is Bedrock.
562147
That presumes the earth is a perfect sphere, and that you are drilling directly toward the center of the earth.  In reality, the earth is slightly fatter in the middle than at the poles, plus there's little or no chance of drilling directly toward the center of the earth, much less making it out to the other side.  Man-made drill holes have never even pentrated the earth's crust, which goes 10-40 miles deep in most places.  For comparison, the diameter of the earth is about 8000 miles, between 200 and 800 times the depth of the crust.\n\nTo drill such a hole would be an engineering impossibility, for a host of reasons, notably the heat contained in the earth's mantle and core, but also simple issues of scale.  The longest man-made tunnels, such as the "Chunnel", which spans the English Channel between France and England, and the Sei-kan, which spans the strait between the Japanese mainland (Honshu) and the island of Hokkaido, stretch less than 35 miles and cost hundreds of millions of dollars per mile.  At that rate of cost, a tunnel through the earth would cost on the order of 2 trillion dollars.  And that's not even taking into account for the cost of keeping the tunnel cool enough to operate within it, and building a structure capable of withstanding the flow of magma, so as to prevent the tunnel from collapsing behind you as you tunnel.\n\nIn short, I wouldn't go so far as to call it impossible...just so infeasible as to ensure that it will never, ever happen.
702303
Well, you would not make it through because you would die in the middle from the heat.\n\nAssuming that there was no heat to burn you, in that case you would get stuck in the middle because of gravitational force.\n\nAssuming there was no gravity, you would probably not be able to make it through because it would be too exhausting.\n\nAssuming that there is nothing that could prevent you from doing it, either physical or geographical, then you would come out of the hole right side up.
520200
assumeing that one leg wasnt longer than the other, and that you couldnt fly and just walk straight out into space, you WOULDNT end up back where you started if walking in a straight line, because the earth isnt perfectly round...  you would have to walk east-west on the equator only
139833
I suspect you're referring to the "China syndrome," where a nuclear meltdown could supposedly bore all the way through the earth to the opposite side. This cannot happen. Any meltdown will only bore through the ground until it hits the water table, at which time it will be discharged back into the atmosphere with the steam. Even if there were no water table, the fissile material would stop when it reached the earth's core, since it cannot fight upward against gravity.\n\nThe accident at Chernoybl, if I remember correctly, never even reached the water table. It was controlled by the containment facility.
441
I think u mean dig, and the reason is you just loose some of the dirt onto the ground u pile it on.
804491
If there was a hole right through the center of the earth?\n\nAlright.  In order to understand the answer, you have to understand the difference between potential energy and kinetic energy.  Potential energy is stored up energy.  (Like a rubber band stretched and ready to snap.)  Kinetic energy is moving energy.  (Like the rubber band in the process of snapping.  \n\nThe moment that a person steps over the hole through the earth., that person has complete potential energy.  The earth's gravitation is pulling on them, but they are not yet falling.  As they fall, that potential energy is converting to kinetic energy.  They fall faster and faster.  Once they reach the center of the earth, they have no potential energy, only kinetic energy.  \n\nThis kinetic energy keeps them moving down the hole towards the other side of the earth.  As they are moving away from the earth's gravitational pull, they slow down.  The kinetic energy is converting back to potential.  \n\nOnce they reach the surface, they once again have full potential energy and zero kinetic.  \n\nSo, they yo-yo back and forth between the two mouths of the tunnel.\n\nWhat ends up happening depends on if you are taking air resistance into concideration.  \n\nIn a complete vacuum, the person would yo-yo between the two openings of the tunnel forever.   The person's potential and kinetic energies would have an inverse relationship.  Back and forth.\n\nIf you are taking air resistance into account, then some of the energy is lost from friction between the person falling and the air.  (It's lost through heat energy.)  During each yo-yo, the person's fall would be less and less.  Eventually, all of the energy in the person would be lost through the heat energy and the person would be stuck in the center of the earth, suspended there for all time.\n\nKinda cool, huh?
1096262
rock, and the depth will be different wherever you decide to dig. there are even deserts that don't have any sand at all, just exposed rock and "normal" earth everywhere.