How far can you go up before your in space?
472914
Space officially begins 50 miles above sea level. That is when one leaves earth's atmosphere and enters the void of space.
220257
Depends on the distance you are from it. Close to the surface it is 9.81 m/s^2.\nThe gravitational force (and therefore the acceleration) decreases as the square of the distance from the centre of the earth. The surface of the earth is about 4000 miles from the centre - so if you flew 4000 miles above the surface of the earth, out into space, the acceleration would be 1/4 that of the surface... or about 2.45 m/s^2.
466473
The answer to this all depends on how high your head is off the ground.\n\nThis is an excellent page where you can type in how tall you are, and it will tell you what the straight line distance to the horizon is, and the curved distance.\n\nhttp://newton.ex.ac.uk/research/qsystems/people/sque/physics/horizon/
810363
The best is sitting in your time machine, fly to the future and discretely check your height.\n\nBut seriously, look at these articles, describing how future height can be estimated:\nhttp://www.darpa.mil/sto/space/pdf/Marino_KASSPER_03.pdf\nhttp://www.agu.org/pubs/crossref/2006/2005RS003405.shtml
411381
About 6 feet, which isn't an issue, unless you live at,near or below sea level. If you do, you should move anyway.
945516
I'm not sure there is enough information in the question to answer it.  We need to know the altitude of the astronaut when he is accelerating.  The answer implies that the astronaut is at sea level (see the other answer, where the user adds 9.81, or the sea-level gravitational acceleration).  However, if the astronaut is in space, then the acceleration due to earth's gravity is reduced significantly.\n\nSo in showing your work, I'd recommend at least stating the assumption that the astronaut is at sea level.
128576
depends how high off the ground it is.
1038631
Yes, you can.\n\nIf you were at a high altitude in a fighter jet and you pointed the nose toward the ground and hit the afterburners you would be accelerating toward the ground at an acceleration much greater than that of gravity.
882958
Let's assume your question is only in reference to the gravitational differences, i.e. forget about the lack of air, the necessity for a space suit, the surface, etc.  \n\nIt's fun to think about.  It would be an exaggeration to say a football could be kicked into orbit, but the ball could certainly be kicked a lot further.  With one-sixth gravity, the ball should travel about 2 1/2 times further.  So, 100+ yard field goals should be quite makeable, and forget about kicking off from the 35 or 40 - it'll have to be from the back of the endzone, that or expand the field to at least 200 yards.\n\nI think the gravitational difference would create some bigger issues.  For starters, running would be more difficult.  Astronauts who have been to the moon say it is easier to hop bunny-style.  Figuring the best athletes should have at least a 20-foot verticle leap, that should produce some impressive hopping - one jump should be enough for a first down.  So, maybe 10 yards for a first down is another rule that would have to be scrapped, changing it to something like first and 25.  \n\nCould the game still work?  Eh, maybe, maybe not.  One thing is for sure, though - the game would look a lot diferent.
277455
Well, they say there´s no end to space....prove it!!! \n\nI say it should take you about 3 weeks if you take a gentle stroll...but hey, who´s gonna prove me wrong!!! \n\nGreat question... ;-)
28938
Near outer space is at least 110 km above ground.
912463
since you said "IF",  I think somewhere around the middle gravity will reverse on you and you will have to turn your body around so that you can come up on the other side head first.
960647
Okay so if you are falling towards the ground the problem is that you are going to have a lot of speed when you hit the ground and that's not a good thing at all.  It is true that you can use your legs to push yourself upwards.  If you could push yourself upwards enough you could reduce your velocity towards the ground or even cancel it out!  So the question is how much upwards velocity can you give yourself by jumping.\n\nSo a little background first.  Say a slingshot fires a ball at 50 m/s.  If you were falling straight down towards the ground at 40 m/s and you shot the ball straight up it would have a velocity of 10 m/s upwards.  How did I get that? I got it because you can just add and subtract velocities like that if they are in the exact same direction (or exactly opposite direction).  I walk left at 5m/s along the ground and throw a ball same way at 6m/s it is then going left at 5ms+6m/s.  Or if I threw it right at 6m/s while walking left it would start with a velocity of (5m/s-6m/s) left which is -1m/s left (that's the exact same thing as 1m/s right).\n\nYou can figure out how much upwards velocity you can give yourself by jumping using this formula:\n\nvf²=vi²+2ad\n\nvf = final velocity, vi = initial velocity, a=acceleration, d=distance\n\nImagine you're standing on the ground while we think about this for a second and that you are great at jumping and you can jump 1 meter upwards.  You start with some velocity vi from your jump and have 0 velocity when you hit the peak of your jump at 1 meter in the air.\n\n0=vi²+2(9.8)(1)\n\nvi=4.4m/s\n\nSo if you are a strong jumper you can give yourself an upwards velocity of 4.4m/s.\n\nNow finally back to the elevator, if you and the elevator fell from a 5th floor at about 15m height you would be going down pretty quickly, almost 20m/s before you hit the ground.\n\nNow if you could jump upwards JUST before hitting the ground you might at best get almost 4.4m/s of upwards velocity and you could subtract that from your downards velocity of 20m/s.  That gives about 15m/s and that is a big problem to hit the ground at that speed.\n\nUnfortunately you wouldn't even do that well because not all of the force you applied to jump upwards would go into accelerating you upwards.  Some of it would go into pushing the elevator downwards even faster so you would gain even less upwards velocity.\n\nThe short answer is you could reduce your speed a little bit but not nearly enough to stop yourself from landing way too hard.
535950
Hello, the Base camp is at 5300 meters. You then have 3550 meters to climb to go to the top (8848 M to be exact).
30984
sure, you just have to leave earth.  the acceleration on the moon is about 1.6 m/s^2.  so you'd need to go somewhere slightly larger than the moon, but not quite as large as the moon.  perhaps mars?  aha, on mars it is 3.7 m/s^2.  close enough?\n\nhttp://hypertextbook.com/facts/2004/MichaelRobbins.shtml\nhttp://hypertextbook.com/facts/2004/JahshirahRossi.shtml
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.
750320
If it takes 6 secs to reach the max, it will take an additional 6 secs to reach your starting point.  In this case it is 2560.  Then it is a matter of finding the time from that point to going to the ground.\n1st lets correct the orginal equations (acceleration due to gravity is down/negative)\nh = -16t^2 + 192t + 2560\n2nd - set the equation to zero since we want to find the time to ground.\n0 = -16t^2 + 192t + 2560\n16t^2 - 192t = 2560\nt^2 - 12t = 160\n(t^2 - 12t + 36) - 36 = 160\n(t - 6)^2 = 196\nt - 6 = 14\nt = 20\nConclusion: 6 seconds to reach max ht of 3136, another 6 seconds to reach starting point of 2560 and another 8 seconds to hit the ground.