Gravitation

See the next post (duplicate).

Next post is #3. Yours is stupid

Going down a few orders of magnitude, doesn't it all depend on what "release" means? Obviously, if you push the two objects apart, either by applying force against both or just one via an independant thrust, you're adding energy, and will accel/decelerate one or the other.

Therefore, the speed/velocity will not be identical.

Is there any way to "release" or "defasten" one object from another without imparting some energy to one or the other, or both? In reality, we don't really care as we usually don't measure orbits in micrometers.

http://cr4.globalspec.com/comment/550504

the forward movement of the satellite rotating round the earth is held there by a combination of centrifugal force and gravitational force

if the rotational force matches the gravitational force the satellite stays where it is if rotational force is reduced the the satellite will fall slowly back to earth as the gravitational force is the greater

Seen from the satellite, the body won't move away from it unless it's pushed/thrown/rocketed away in some manner.

Cheers! DZ

Rakesh is accurate. Just to put it in other words, there is no atmosphere in "space" to reduce the momentum of subject body.

Specifically, if the two bodies are bound at a single point, they are a single mass until detached. When detachment occurs, both orbiting masses start to adapt in speed and angle of movement in relation to the governing mass. In this case, the earth is the governing mass effecting the orbiting characteristics of your proposed model. At the point when the single orbiting mass becomes two separate objects, they will both be subject to gravitational forces of the earth based on their new individual mass. Both will have less force effecting them but proportional to their mass. Less gravitational force is accerted on a smaller mass. As both objects become two separate objects with lower mass than before the separation, the angular speeds will remain constant for a period. The mass and subjective gravitational forces will remain proportionally the same and the ratio is the determining factor. If one object is larger than the other, it will experience a gradual change in orbit distance and speed from earth different from that of the smaller object. The change will be gradual at first but more noticable as Gravity wins. In the vaccume of space, little differences will occur but, once both objects enters the atmosphere, a percentage of the reentry will essentially be at the same speed, however the angle of entry will be greater for the object of greater mass as it's momentum will carry it further and it will resist gravity longer due to momentum. This resistance to gravity for the larger orbiting mass will also keep it in a higher orbit longer due to momentum. There is also the fact that each time you reproduce this situation the results will be the same unless you change the orbiting distance of the original single mass before separation. Greater orbital distance would give slower initial effects and a longer more drawn out change in the reentry cycle characteristics. The statistical graphing of reentry characteristics would a broader range of difference over a greater time. The smaller the initial orbiting distance, the less the difference in reentry data would be. However not being a specialist on this topic, my reasoning would lead me to beleive that an orbit of the initial mass has an orbiting distance limitation where the results would be the same each time if the initial orbit was increased in distance. Once the extreme gravitational limit at the weakest point was attempted at the greatest distance, there will be a plateu of forces and both objects would be essentially equal and their mass would not be enough in any case to be effected and they would stay in relation after separation. If the original mass was greater and the difference after separation was a greater ratio or difference of mass, the maximum orbiting distance could be pushed out further and so on and so on. Any variables in the mass or masses will change the answer and facts for this one. Perceived and measured are like night and day. Astrophysics can be a very mathematical pleasure or nightmare. Probe after Probe after Probe has to be sent in many cases to evaluate what is a plausible assumption for any mission. Sometimes a physicist with many years of experience is worth his weight in gold just because he has the experience and insight that can only be experienced and not learned in books. If you want to be the best astrophysicist one day, find the oldest practicing grey beard out there and ask him everything you can.