What Would Happen If You Could Fall Through Earth
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- Опубликовано: 15 сен 2024
- If you wanted to fall through Earth, you would need to build an airless vacuum straight through the core. Gravity would take you from one side of the planet to the next within forty minutes. Just be sure to wear a space suit so the intense heat doesn't burn you up.
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*I've been falling FOR THIRTY MINUTES!!*
Bdouble0?
Loki?
OMFG HAHAH
😂
ooh poor loki xD
Asking the real question,
How do they make the pipe?
Omg lol 😂
They made a new video for that now
@@yosepht7941 It was a joke idiot
PurpleEgg Kid no they did
@@yosepht7941
watch?v=mPcHTEAW6rw
1:09 he's falling so fast that the video quality was reduced to 480p
ruclips.net/video/WRRXxYUYJ-g/видео.html
I think that’s motion blur!
@@trexirexi if you look closely, both happen. 1:09 is just the part during the falling the quality gets reduced
Lol for even me thats a good quality for a youtube video
360p*
LOL what if you didn’t grab the edge and you fall back down 😂
fun!
It will be like a pendulum. You will be travelling back and forth
@@panthopothik6338 ... until you lost momentum and stuck in the earth core.. fun!
It happened to me once, I had to borrow those gloves from Tom Cruise after then.
Here we go again
Imagine just seeing a guy flying out of a hole into the sky at super high speeds
You wouldnt, considering like the video said, gravity would slow you back down before you reached the other side
Frooboy r/whoosh
Also upside down
@@uncleiroh8541 /r woooooosh
/r Ihavereddit
@@maeenergy7890 no
I always imagined your momentum wouldn’t be enough to resist the gravity once you pass the core, like you’d end up falling back down to the core after you pass it, becoming stuck floating in the middle of the earth, where there’s no gravity basically.
suns_out_buns_out so im not the only one lmao.....
same
that is terrifying
My thought exactly. I think this is what would actually happen. Who the hell are these guys who made this video?
same
After you pass through the center of the earth you'll come out on the outer side as ashes.
Myks not even ash they'll just be nothing left
Veni veni hahah yeah probably
Myks you should go through the sink pipes 😂
bimal baniya lmao
Myks i dont feel so good...
Because we live in a simulation, we would have to ask our Programmer(s) for an invincibility mod, or more HP.
Holy_ShushCabin or fire immunity
or exploits
Creative mode
Dude just go into creative mode
Just ask for operator bruh.
Wouldnt you have to end up crawling out the other side? I cant see you being shot out or elegantly exiting the outrance
That’s what I always wondered as well. When you get to China side would you slow down so much that you would have to turn your body around and climb out the rest of the way?!
@@samboonjue1349 realistically they'll keep going up and down and up and down each time they reach a certain height
Paul Rios probably like an very powerful air force pointing to the exit and if your going the other way it would be switched
outrance? exit..?
campers
So I basically can win a race against a fighter jet in a race
So I basically can win a race against a fighter jet -in a race-
I’m probably wrong, but wouldn’t this only work perfectly in an exact sphere? Wouldn’t the distance from the top of the hole to the exact center of the earth have to be the same for the gravity to slow you down to zero on the opposite side?
In theory jes
That’s what I thought
Then just bring a parachute with you or find a place on earth where both sides are exactly the same distance from the core if that exists.
Yes.
@@dinnerboons1504 In this scenario there isn't any air. So no, parachutes wouldn't help.
That’s a really bad assumption
You CANNOT ASSUME GRAVITY TO BE CONSTANT !!
You must account for it’s variation with depth
Yep, totally right.
There will be SHM also
They didn't assume gravity to be constant, it's decreasing linearly, and assuming that the time period comes out to be ~83 min and for one trip it's 21 min
You would not reach the other side, you would fall to the center and eventually stay there. Gravity is not necessarily constant, when you are traveling through the earth you would eventually reach 0 g (as all of the earth would be pulling on you, not like on satellites) and then any further momentum would keep you going, but it will try to bring you back to the center in a spring type motion. None of this would be true if you weren't exactly on the poles, and you would just fly into the side of the pipe (killing you instantly)
Brendan not exactly, you will reach 28000 kmh before the center of the earth if you do a vacuum free fall, and that speed is strong enough to overcome the gravitational pull.
Well you had a high speed while reaching the core so u could go a several distances then when you slow down you would go back
Brendan Rodgers Correct
Remember this all happens in a vacuum so no friction to dampen things. there would be a constant (and practically equally) acceleration on both sides meaning you'd stop very very close to the other surface at the end
The Earth's center of gravity will keep u from moving at the dead center
I edited this comment so now it doesnt make sense
Mee
maybe me
Me
Me
Meh
Now we wait for Elon Musk to do this for us
yesss bro let's go `i was thinking the exact same thing:)
Well good luck for that 200 septillion project
@@dontlookatmyvideoREE Not that long I feel like humanity could develop something in order to bypass through the center of the earth in about 1000 years
@@Cay9z If only we could live that long.
Assumptions:
1. The suit is perfectly insulated.
2.The air is removed from tunnel and is filled by vaccum
What will happen:
The person who jumps in to the tunnel will be having decreasing acceleration due to gravity.The acceleration due to gravity will decrease till the center of the earth at the center the body will be having velocity without acceleration. When the body goes to wards the other end.The body will pulled towards the center of the earth s acceleration due to gravity gradually increases.In the scenario before the person reaches to the other end.The velocity will be zero on the crust of other end and he will be pulled towards the center of earth.Hence, a person who goes in to tunnel passing through center of earth will oscillate in the tunnel with center of earth as its midpoint.The video shown here gives wrong presentation about the situation.If any energy loss is considered the person will be stuck in center of earth
i wonder how would it be like - to be right at the center of that tube. Would one be able to stand on the side of it? How bizarre would it feel to start walking in one direction and suddenly feel the change of gravitational pull, so the tube path becomes a wall.
True
If you could go through the whole tunnel without getting stuck in the middle due to energy loss, I think it would feel like you are suddenly shooting upwards the moment you pass the center of the core. It would be very weird. Falling and then suddenly shooting upwards
@Nikhil Nikki it might become real, if we survive long enough to leave solar system.
I almost needed a PhD to decipher what you even said.
“honey, i’m going to china, i’ll be back in an hour or so.”
Wait so if u jump down into it u will come out legs in the air facing the sky?
Bruhhhhhh..I had the same question 😱
@@sketchfreak_8740 xD
So if you dive in then you come out facing the sky.
Adron Ung yes
Yes that was quite unclear explanation
what if you like
jump down there
and then as you are approaching the other side
you miss the ground
and fall back down the hole
@@twynics3958 What if someone else jumps expecting you to make it, surviving the impact you'd eventually fall back down and not have enough speed to make it to other side staying stuck inside the earth slowly dying.
"I've been falling, for thirty minutes!" -loki/first guy through the core tunnek
you have to pass through lava and will reach heaven instead
Sriharsha Ksh you are cristin
Sriharsha Ksh or hell depending on your actions in your life
Atheists are so intolerant.
No
It has less to do with tolerance than it does basic common sense
You assume air pressure isn't negligible but assume gravitational force is constant?
you'd still accelerate to some ridiculously fast speeds before gravity gets weird
@@TorutheRedFox just to about 300 km/h. Not that fast on a big scale.
Gravity keeps decreasing until you get to the centre and then it keeps increasing until you get to the other side. So it starts at 9.8 N/kg, goes to zero at the centre and then increases again to 9.8 N/kg. Gravity decreases with radius linearly. At half the radius of the earth gravity is half of gravity on the surface (4.9 N/kg).
@@Aaqe are you sure it's linear?
Yes. I am.
Gravity is proportional to the mass below and inversely proportional to radius squared. The contribution to gravity of the mass above results to zero.
Mass below is proportional to volume which is proportional to radius cubed
Divide radius cubed by radius squared and you get radius. (assume constant density)
Gravity is directly proportional to radius which means it increases linearly with radius as you go away from the centre.
@@maxpavlovsky
What if you hit the side of the pipe? Probably explode like a bug on a car window
true. this video forgets the coriolis effect. that is unless your hole is perfectly on the y-axis of the earths rotation.
ruclips.net/video/WRRXxYUYJ-g/видео.html
@@dontdriveangree I'm glad someone said this 😅
This suddenly reminded me of:
Loki: I was falling for 30 minutes
Or Spy Kids 2 the island of lost dreams
The only thing I'm wondering, is if the core didn't incinerate you and if it was actually possible to come out on the other side, would you pop out on the other side upside down or right side up...?
Pls answer this
Upside down. Because for the other side of the planet, you are upside- down. So unless you decide to fall upside- down in the first place, you'll end up reaching the other side of the planet upside down.
Only your head will be upside down. The rest will be in a neutral orientation.@@isaiahrafaelpena8287
Feet first
I don't think a space suit would protect you from the intense heat of earths core
FoxSickness it would if you went through it fast enough.
The tunnel would be evacuated. Like a thermos.
FoxSickness then i would wear supa hot fires clothes
If you can survive my mixtape you can survive earth's core
Xia
Lmao typical hood memes 😅
flat earth be like..
earth has no center.. no core..no gravity
its flat.. just flat.. nothing more.. just flat..
hahahaha.. i loveu how flat earthlings think about this..😆😆😆😆
What the actual *F U C C*
its true
I love how at the end you used two locations that would actually be across from each other.
Most places on earth would end up in ocean on the other side.
If this was true, wouldn't the water flow down the pipe and flood the interior of the earth until it reached its centre and evaporated completely? All oceans would be emptied and the interior of the earth would become a mountain of salt.
Thank you. This is what I ask myself when I was a kid and can’t find a answer.
sorry, but if you fall towards the core due to gravity, that means you'll get attracted to the core and you'll be sticked there forever. I"m afraid the momentum will not be enough to push upward to the other side
And the air resistance would always slow you down, let's not forget about that.
You'll be stuck in the center and be cooked alive. 😂
wabi sabi momentum would keep you going at like 10000 kmh and that’s still pretty fast
@@humblenoob7631 **pretty** fast
@@humblenoob7631 not enough to get you out
@@christy3971Yes, it is.
@@christy3971 plenty
Wouldn’t you end up in the ocean?
Yes
No
Look at this
ruclips.net/video/mPcHTEAW6rw/видео.html
@@ONE-cw3eh is that the video what if u dig to China, cuz I just wtache that
idk
But the Earth is not sphere.
It's an oblate spheroid
No one :
Flat earthers: WRONG
Actually you would go back and fourth endlessly because you will be pull by gravity just before you reached the so you would need some sort of rocket to get you out
Idk tho at that speed in a vacuum. That’s really fast
That’s almost 10 thousand mph faster than a falcon 9 rocket and 2 thousand less than a geo stationary rocket
Imagine falling through a hole in the center of the Earth for 19 minutes straight at 25,000 MPH
Idk but i think the middle is too hot..right?
Ignorant
Oishee's time ok...
If they would dig a tunnel like we usually do on earth the person will of course die but they were talking about an idea where the tunnel is indestructible
Oishee's time no its too cold inside because sunlight can't reach there
Naiyyar Khan there is a core in the middle made of hot semi liquid metals which is hot. It is responsible for our gravity and magnetic field. Havent you learned this?
I think, he will be oscillating near the centre of earth 🌍 , He will not able to came out side other end....
Pravin Mali great explanation my friend.
i thought that too
Ratan Bharadwaj ruclips.net/video/xXXF2C-vrQE/видео.html
Same principle is applied here.. 😊
Pravin Mali yeah that professor risked his life just because he knew what was going to happen. he knew the Physics very well which saved his head from being crushed
My explanation is according to physics law given by the great physics teacher ' Walter Lewin'
ruclips.net/video/xXXF2C-vrQE/видео.html
Pravin Mali he must have been a nerd in his school days
This might be a good method of transportation, but imagine staring down into a hole that goes to the center of the earth, imagine how deep it would be
Pretty deep, I would imagine
Would it be deep as much as the radius of the earth or its diameter?
Give or take 4,000 miles deep, but it also depends where the hole starts and ends as Earth's diameter varies as it's circumference is not perfectly uniform everywhere. It's longer at opposite ends of the equator than opposite ends of the poles.
As you pass earth’s core you’ll start losing energy and subsequently become slower. You would never make it out the other side. You’ll simply fall back and pass the earth’s core once again. You’ll fall back once again until you lose energy and will end up in earth’s core.
For those thinking this is possible its not. Even if you somehow got the tunnel made and had some suit to protect you, without a perfect vacuum you wouldn't make it to the other side cause of momentum loss. And then you would get pulled back for another ride
idk how you could make a tunnel that would survive 6000+ degrees and pressures that are incomprehensibly large
@@stonium69 I reckon some clever engineers probably could tbh
The problem is that when you get to the other side and stop, someone has to be there to grab you avoiding gravity pulling you back to where you came from, similarly to a projectile launched vertically upwards. If there is nothing to grab it on top of the trajectory, when it stops to reverse its motion, it would return down.
Gravity is not constant, lazy job.
yes it is
Luke Muller lol exposed
Luke Muller lmao gravity is not a constant cmon bruh what do u think will happen if u get closer to the source of gravity? Cmon bruh
Luke Muller do u even know why earth is compact? Cmon bruh
No shit f=gm1m2/r2 so as you to objects with mass get closer g force increases. He's not saying the force is a constant but just theoretically the definition of gravity as a mathematical constant.
"WHAT WOULD HAPPEN IF YOU COULD FALL THROUGH EARTH?"
You could save alot of gas money on vacations
Not possible. The earth is flat.
absolute moron
I think he's joking.
i agree
gr8 b8 m8
Maybe if we throw a flat earther down that hole...
“I HAVE BEEN FALLING FOR 30 MINUTES.”
this doesn’t beat what Loki has been through.
Lol
Nice presentation, but you forgot to mention the Coriolis effect. The person falling through the tunnel would eventually start sliding along the walls due to the initial velocity vector at the time of launch because of the earth's rotation. Not a nice thing to happen when traveling at 25k mph. The space suit would need a small booster to keep the person in a straight trajectory.
Unless they make it right down the pole,though this hole thing is a logistical nightmare
Future human to friend:
See you in the evening on the otherside of Freejump station.
(Swoosh!)
(Plop!)
He will experience forth and backwards movement which eventually led him to make his motion a simple Harmonic (SHM)
Acceleration due to gravity wouldn’t be constant at all - it would decrease linearly from 9.81m/s to 0m/s at the centre.
Sure wouldn't be linear
@@theunknownuser72 Sure would. It’s based on the shell theorem - a hollow shell of mass doesn’t create any net acceleration due to gravity inside itself. So as you go down into the earth, the parts above you cancel equal amounts below you.
I read about it in my physics class, we'll perform SHM if we fall into a tunnel through the earth whose time period will be T=2π√R/g=84.6min means it'll take 84.6 min to travel from one part of the earth to the other and return back to initial position..
How come you fall down after the earth core if the gravity is pulling you back down? Shouldn't it be like we will stuck in the middle in weightlessness (zero gravity)?
But the Earth don't exist
maskedassface ok...
maskedassface Dang I always thought it is flat...that's a new perspective
Then what are we and what do we come from if we are not on or no where near this “earth”
Tony Montoya We're all in a simulation, controlled by the government of nothing. We're all subjects of an experiment led by "them".
Tony Montoya r/ WHOOOOOOOOSH
Haters will said Earth Is Flat...
Haters will say the Earth is flat.*
O2• Lexius because its true
O2• Lexius As you believe shills and cgi and to dumb to know you can't prove we are spinning or moving
Haters will say Earth is fat...
O2• Lexius hahaha lol
Due to the law of inertia, you would keep going after gravity starts to pull you back down, but with less energy, so you wouldn’t be able to reach the other side.
That doesn't matter anyway because the heat and air pressure would both be high enough to kill you long before reaching the core, they'd be high enough to kill you before you reach the mantle. The bottom of the Kola borehole has a temperature of 350° Farenheit and that's only halfway through the crust, and the crust is way thinner than the mantle, outer, and inner core
Interesting fact: Chinese fiction writer Liu Cixin(One who wrote Three Body)had wrote such a story in 1998, named The Earth Cannon, quite detailed about some technical problems.
The thing is.. you will not be able to make your way out from that hole..
At the centre of the Earth the gravitational force is 0. When you start falling from point A it will attract you towards the centre or force you to come down. When you are at the exact centre of the Earth you will be falling with a high speed so you will not be able to stop.You will be traveling towards the point B with your speed . And then the centre of earth will attract you again to backward, your speed will be decreased and again you will be falling towards point A.. this will be a deadlock situation.
I remember asking my 6th grade science teacher this a few years ago. She just got mad at me and said I would burn alive.
Devan does makeup Did you ask her why gravity isn't science if you can't create it ?
Private User we can't create alot of things, yet still call it science. Also, one theory states that anything with a large enough mass has gravity. If that is correct, then we can in fact create gravity by creating a large object.
why did she get mad hahah
Imagine if this were possible. Someone would ask "So where do you work?" and if you lived in Chile, you'd answer "China. It's about an hour's commute from my house."
The earth is full of flat earthers
You know once you reach the centre or inner core of the planet, (hypothetically speaking). Do you suddenly realise you have to start digging up backwards (up), or do you still carry on digging down? Can someone please explain.
You start digging upwards until you get to the other side. Up means AWAY from the centre of the earth and consequently down means TOWARDS the centre of the earth.
@Aaqe So you are proving me right?
Yes. DOWN means TOWARDS the centre of the earth and UP means AWAY from the centre of the earth because gravity points always towards the centre of the earth both above the earth and inside the earth. @@celestial_virtueyt9799
You didn’t though about Earth’s rotation, which will make you crash over the walls of the tunnel as Earth’s displacement changes over time making it a bad idea if you are traveling way faster than the speed of sound.
Legend says that harambe lives in the very center waiting for any of those who are worthy
What if theres a earthworm blocking the way?
*Science Insider Has Been Banned From This Minecraft Server For Hacking*
I worked on a project digging through the earth. We had planned to dig from Australia right through to China. The project was halted due to equipment failure, when my plastic spade broke. The other obstacle was the inexperience of the other engineers, who, like me, were only 7 years old.
Center of Earth is same as The Sun.
No thing can handle that heat , even hell can't be that hot.
I am gonna try to do that in minecraft!
Wait.
:(((
You would definitely need mods for that because the Minecraft world is basically flat.
This video assumes a perfectly balanced planet, so I'll do the same.
Would air pressure at the center really crush you to death. Gravity is zero at the center since it pulls in all directions equally, cancelling itself out.
Of course you would have likely already been crushed to death long before you reached the center so that's probably a moot point but air pressure should be much less at the center than it is at the earth's surface.
I'd love to see an actually explanation though and not just an assumption that pressure must be at its max at center.
Ok, I'm no genius, so I hope someone more intelligent corrects me.
As I understand it, asuming the perfect planet and all that, the gravity at the center would be 0, yes. But the gravity at ground level would still be the same, so if the air at the surface pulls towards the center by 1G, but the center air doesn't have an opposing force to counteract it, so the air from both ends of the tunnel would compress itself in the center. The force of gravity that compresses the solid center of the earth also works with the air; so air pressure would be the same at ground level but it would get denser and denser as you go down
@@taiyoqun Correct
Once you reach the center, wouldn't gravity pull you in all directions and you explode?
Why would you think that ?
When you are at the very center wouldn't gravity pull you in all directions?
If you consider that earth is composed of chunks of rock, yes each of these will pull you in a different direction if you're in the middle, but this force is quite weak and becomes weaker really fast the farther away you go away from the object. So if your center of gravity and the Earth's are on the same spot, you have no attraction towards Earth in general, the attraction to each chunk roughly cancels out (yes your head would feel a force of something like 0.0000000...1 Newton towards your belly, and the same for your feet, but that is nothing compared to the attraction you'd feel on the surface.
See : en.wikipedia.org/wiki/Gravity
Look at the formula, and look for videos explaining gravity. Once you've understood that the same formula works for objects on the surface of Earth being pulled towards the Earth and Moon-Earth, it's like you've mastered the theory of everything. If you know vectors, then it's just a sum of vectors that cancel each other out. roughly ofc because in physics you have to assume that you are super small compared to Earth.
No it wouldn't, you're assuming that it's like if you pull a piece of paper apart, except in that case you are causing a force in one direction on one side and another direction on the other side of paper ; gravity wouldn't work like that, it would cause the exact same force on any part of you, to be shredded you'd need to have your extremities pulled in opposite directions, wouldn't be the case here. Closest "real life" example I could think of would be the needle of a compass, it's pulled North and South at the same time but as each of its parts are pulled the same way it actually balances.
Not only would the gravity be extremely weeks you’re at the center of mass, but also the momentum would take you in your previous direction.
Wrong info.
Case 1 :- vacuum
In case of vacuum you can't make it to the other end because you will be oscillating back and forth. The moment you will reach the other side gravity starts pulling you again towards the center.
Case 2 :- air is present
With each oscillation air resistance will slow you down eventually setting at rhe center. Just how pendulum stops oscillating after some time.
Also look down the tunnel first and make sure no one jumped in on the other side.. otherwise you will collide and bounce back.
how would you even see something down there?
*Earth is Flat* (Yolo)
*Earth is round* (Yolo)
*Earth is a cube* (Yolo)
*Walk in the other side of the planet within the Core*
(Ultimate YOLO)
Atlas Falls How old are you
Sendou Takeshi 8 years old.....
Earth is like minecraft
I am from Chile and as a kid i grew up hearing that beneath me was China. I thought it would be like that for everybody until I grew up.
I always wondered what would happen when you reached the centre of the earth. Answered my question in under 2 mins that had me boggled for years
Time Travel LoL 😂😂😂
woah
I fell like when you hit the centre it’s gonna be like flipping your iPhone upside down over and over again.
Imagine falling for 30mins
*picks up shovel
*starts digging
So the real question is... at what point do you spin around? So you don't come out feet first? And, even more importantly, how do you spin exactly 180 degrees? Like... what do you push against?
Sorry our earth is not a pizza for you to cut any way you like.
Stars Withlove earth is not flat like pizza either
Shallex no, it's not, if it was, we would flip over while spinning and float off
TheJuiceGoose he’s a troll
Shallex yes you are, the idea that the earth is flat is too dumb to be true
TheJuiceGoose r/WOOOSH
Earth will break into two😂
samad.ahmad that, or it would crush you in the middle and looking more like Stewie's head
There’s just a hole in the earth from one side to the other 😂
r/memes brought me here
Same
"And I'm free falling " is all I'll be singing on the way to the other side of the planet
Bro… I’ve been thinking about this for the longest time and now I actually decided to look up a video
It's a What if situation.... Why is everyone using all their physics here? We all know it's not possible.... We all know gravity is not constant throughout this trip.... We all know the core is way too hot.. We all know there is air resistance ...... Stop implementing your knowledge in the comments section and do something productive with it...
Elite Trainer Alan air resistance in a vacuum?
Ryan X read the comments.... People don't get that he has created a hypocritical vaccum..... Everyone have a case starting with ooo air resistance
i like how you completely ignored the pressure of the earth and instead said "We all know there is air resistance" when there would be no air
No air resistance inside a vacuum cleaner bro
Elite Trainer Alan We all know ?
We few know gravity isn't science, you can't create it and that's what science is. So why do theories about something that's sci-fi?
This is how a turd feels
Jax Nean 💀💀
Why won't you stuck in the middle due to gravity?
thisaccountisfake Gravity does pull you from every direction, but assuming that you keep speeding up with 9.8m/s^2, you can definitely overcome the pull after passing half of the Earth's center.
However, you cannot be stuck even if you didn't do a free fall but instead walking slowly toward the center of the Earth, as the gravity pushes you from all direction, the forces cancels out from all direction, so the center of the Earth would be gravityless.
Momentum
By this logic you could bore any straight line through the earth and come out the other side wherever you'd want. You wouldn't reach as high of a velocity and I guess you wouldn't fall as much as slide down a tunnel. But it too would have to be frictionless on it's surfaces.
at what point would you stop digging downwards and start digging upwards? wouldn't you come out the other side upside down?
Alright Elon Musk, here's your chance.
don't build that tunnel
Don't click on Read More
I told you...
Army Seohyun nice try
imagine falling down and fall back in and repeating
In the middle core of the earth if there was a void, you would float, like in space."
If you are going to consider air pressure then you wouldn't reach the speeds you are talking about due to air resistance and you wouldn't have the momentum to go through to the other side totally. you would "Fall short."
Wrong wrong, when you reach other end your velocity will be zero, but your acceleration will be maximum in opposite direction, so you can't go from tunnel and again start to go to other end , and It will continue a infinity loop, thus you have a simple harmonic motion
Me: I should go to sleep
Me: at 2 am
ah yes, when you put on a astronaut suit you get squished but when you put one on again you live.
an object in motion stays in motion.. assuming you don't stick to the side of the tunnel once you reach its midpoint where the gravitational resistance is strongest, you'll continue to accelerate the entire time and fly off into outer space proper.
This is somewhat wrong. The body, after reaching the centre will experience SHM(simple harmonic motion) and will never be able to come out of that hole without any external force.
You forgot to mention the spin of the earth, you'll be pushed against one side of the tunnel on the way down due to your sideways speed getting depleted and pushed against the opposite wall as you make your way back up