I'm not sure if its to a region above the earth's atmosphere, to a region beyond the moon, to a region beyond the solar system, or forget it, you can't travel enough since it extends to infinity?
2006-12-07 04:06:51 · 7 answers · asked by bramos100702 1 in Science & Mathematics ➔ Astronomy & Space
There is no cutoff for gravitational influence. Earth's gravitational field extends to infinity, though of course it's infinitesimal at that distance.
However, as you move away from Earth, you will reach a point where the gravity of another body will be more powerful than Earth's, and you will wind up falling into or orbiting that body. Going towards the moon, you reach that point about 321,000 km (200,000 mi.) out. The sun's gravity takes over from Earth's about 1,500,000 km (932,000 mi.) from the Earth in the direction of the sun.
2006-12-07 05:18:46 · answer #1 · answered by injanier 7 · 1⤊ 0⤋
There is no distance at which some gravitional effect cannot be calculated, in theory at least. In Newton's Law of Gravity, the force due to gravity between two objects is proportional to the masses of the objects, in inversely proportional to the square of their distance apart. However, because the universe is populated by many bodies, at some distance from earth, the graviational influence of those other bodies will overwhelm that of the earth to the extent that the earth's contribution to the net gravitation force of the system will be negligible. Consider the tiny moons of Mars: the force of gravity that determines their motion is overwhelmingly between Mars and those bodies (and the Sun, which keeps Mars in orbit). The Earth has no measureable contribution to the motion of the Martian moons.
2006-12-07 05:46:21 · answer #2 · answered by Jerry P 6 · 1⤊ 0⤋
as long as one travels on the cost of 9.8 m/s, it relatively is the escape velocity for earth, or swifter, they are able to flee the gravitational pull of the earth. in case you're traveling at a velocity decrease than this value, you will stay related to the gravitational field of the Earth, whether it relatively is in orbit, or caught on earth. subsequently, you do no longer likely might desire to commute far, as long as you commute at a definite velocity or larger. besides the shown fact that, the earth's gravitational stress is countless, as is each thing else's gravitational stress, and could proceed to electrify you no be counted how far you commute, whether you do no longer word it.
2016-10-14 05:16:16 · answer #3 · answered by ? 4 · 0⤊ 0⤋
According to the string theory, your last answer is right. Since every gravitational field effects everything int he universe, you can't escape it. However, there is a distance at which the effect is almost zero.
2006-12-07 04:10:53 · answer #4 · answered by mikzilla0 2 · 2⤊ 0⤋
We can only achieve an "escape velocity". The farther away from a body you are the less speed needed to escape.
2006-12-07 04:15:42 · answer #5 · answered by Ricky J. 6 · 0⤊ 0⤋
truly speaking there is no exact limit of earths gravitational field
since it inversely varies with distance so can tend to zero but not zero
2006-12-07 04:14:56 · answer #6 · answered by vij 2 · 2⤊ 0⤋
You can't travel far enough.
2016-10-05 07:52:07 · answer #7 · answered by Jennifer 1 · 0⤊ 0⤋