gravitational force?
how would you do it?
2006-10-15 19:03:08 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
can u at least tell me which law i would have to use?
2006-10-15 19:08:23 · update #1
Since anywhere between the moon and the Earth, is orbiting the sun. Anywhere between the Earth and the Moon will experience a centripetal force given by m*(v^2)/r.
Because of this greater influence of the sun, you won't have anywhere where you would find a gravitational force equal to zero.
Newton had a great bit of difficulties thinking of this, since Newtonian mechanics needs a reference frame that isn't accelerated - since he couldn't find any such place, he defined the theoretical "absolute space" to be the only place in the universe where there's no net gravitational force.
2006-10-15 22:54:24 · answer #1 · answered by Jens F 2 · 0⤊ 0⤋
Go to wikipedia.org and search "Lagrangian point". It has a detailed discussion of Lagrange Liberation Points, points where a small object affected only by gravity can theoretically be stationary relative to two larger objects (i.e. zero net g). The LP between the Earth and Moon is L1 which exists at 322,127km from the center of the earth.
2006-10-16 02:27:41 · answer #2 · answered by TravelO 2 · 0⤊ 0⤋
If there was no gravity between the Earth and moon, then the moon wouldn't be orbiting the Earth.
An orbit around the Earth that would elicit zero gravity would have to be beyond the moon's orbit...and also away from any other celestial body with enough gravitational force as well.
The moon isn't orbiting the Earth fast enough to cause no descent back into the Earth. The moon is slowly but surely coming closer and closer to the Earth and will eventually fall into or collide with the Earth. If something were to orbit the Earth, it would have to travel fast enough or be far away enough to overcome falling into or spiraling into the Earth.
...mass of an object, speed/velocity of object, distance of object, etc...are all factors
2006-10-16 02:21:11 · answer #3 · answered by entranced82 3 · 0⤊ 3⤋
It would probably be impossible to achieve because in order to be in a position of balance between the attractive properties of the earth and moon you would have to STAY precisely between the two, and since the two bodies get closer and further from each other as they rotate you would have to shift your position back and forth. Also, other planets would have a pull, miniscule as it would be, which would further complicate the finding and tracking of an exact balance point between all forces.
2006-10-16 04:14:39 · answer #4 · answered by Anonymous · 0⤊ 1⤋
although i don't know the exact answer to your question i can tell you that there is nowhere in our universe where you experience absolutely zero gravitational pull - no matter how far you are from something.... but one of the previous answers claims that the moon is slowely coming closer to earth - and this is the opposit of reality. the moon was MUCH closer to earth when it was formed, and is slowely moving AWAY from the planet.
2006-10-16 03:45:06 · answer #5 · answered by Brooks B 3 · 0⤊ 1⤋
You have enough information available to you on the Internet to figure this out yourself. Take this as a challenge and go do it!
2006-10-16 02:06:27 · answer #6 · answered by Frank N 7 · 0⤊ 0⤋
The space station has basically no gravity so the gravity well seems to fade at 100+ miles.
Certainly at a half way point you'd have virtually no gravity at all.
2006-10-16 02:11:04 · answer #7 · answered by Anonymous · 0⤊ 2⤋
The L1 Lagrangian point. http://en.wikipedia.org/wiki/Lagrangian_point#L1 has the formulas and explanations for all the points.
2006-10-16 09:17:42 · answer #8 · answered by Nomadd 7 · 0⤊ 0⤋