2006-11-24 20:47:49 · 9 answers · asked by saul m 1 in Science & Mathematics ➔ Astronomy & Space
You need to be at an infinite distance from the Earth to be at true zero gravity. However, objects in orbit of the Earth are in free fall, and so experience no net acceleration from gravity (even though the Earth's gravity is about the same as it is on the ground). This is what is commonly (but misleadingly) known as zero gravity. A qualifying orbit for zero gravity can be at any altitude.
2006-11-24 20:52:10 · answer #1 · answered by Anonymous · 1⤊ 1⤋
In the whole universe you will not find zero gravity as wherever you go you will be in the gravitational influence of many celestial bodies near you. If you get out of the solar system, you will still have the gravity of the sun and other stars and of the whole Milky Way galaxy. Moreover, the gravity decreases with the square of the distance, so it gets very less but never reaches zero. If you are going far and far from an object, the influence of gravity of that object will go on decreasing, however, the influence of some other object on the other side may increase. So there is no place where there is 0 gravity. Astronauts in spacecraft can float because they are in free fall around the earth. Okay!!! Bye!!!
2006-11-25 05:14:43 · answer #2 · answered by supratim dey 1 · 2⤊ 0⤋
Theoretically, it's infinite. There is some gravitational pull towards the earth no matter how far out, even though it may be minute. You need to decide on a limit, e.g. at what altitude does gravity become less than 0.01 m per s per s?
2006-11-25 04:51:26 · answer #3 · answered by Hynton C 3 · 2⤊ 0⤋
There isn't any. Gravity decreases with the square of the distance from the source, so it gets smaller very quickly but never actually reaches zero.
When you see video of astronauts floating around in a space capsule they're still in the earth's gravitational field. They look like they're floating because they and the capsule are all falling around the earth, that is orbiting, at the same rate.
2006-11-25 04:55:15 · answer #4 · answered by hznfrst 6 · 2⤊ 0⤋
I have heard this all my life, well the gravity of the earth will go out past the moon,but there is the gravity from the black hole in the center of our Galaxy,that gravity is several light years across.
2006-11-25 10:50:23 · answer #5 · answered by JOHNNIE B 7 · 0⤊ 0⤋
At the center of the earth, or about a depth of 4000 miles or 6400 km. There the earth's mass would exert an equal and cancelling force in all directions.
2006-11-25 07:32:54 · answer #6 · answered by geojr1955 2 · 1⤊ 0⤋
To experience 0 gravity, go sky diving.
2006-11-25 04:58:26 · answer #7 · answered by ag_iitkgp 7 · 1⤊ 1⤋
Infinite. You need to be more clearer in the question.
2006-11-25 06:43:40 · answer #8 · answered by Adithya M 2 · 0⤊ 0⤋
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2006-11-25 05:45:18 · answer #9 · answered by Anonymous · 0⤊ 0⤋