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Weightlessness The definition and use of Weightlessness is difficult. Weight means the get exerted by gravity, burdenless means the absence of such forces and elation officially means the condition of zero gravitational force. In popular use, however, saddlelessness (often with quotation marks) has the meaning given in the forgo paragraph. Astronauts and cosmonauts in the International Space Station be say to meet weightlessness, even though, at an altitude of a a couple of(prenominal) blow km, their weight (the gravitational force acting on them) is exactly active 10% less than on earth. Their celestial sphere has a large receptive quickening towards the earth and their weight is the centripetal force producing it. However, the space station has (almost) exactly the homogeneous acceleration towards the earth. Consequently, in the frame of the space station, an unsupported psyche appears to father no acceleration and so his relative consummation in this frame i s the same as that of a soul without weight in a spacecraft that is not accelerating. If objects be removed from a star, planet, moon, or other such gigantic body, so that they experience very little gravitational interaction with them, they would speak to the condition of zero gravity.

If they are close to a massive object, but are unornamentedly accelerating towards the mass by gravitational acceleration only, they are in  unfreeze fall and are weightless. Physically, they both follow Newtons first law of motion which describes bilinear motion. Such a situation, except for microgravity effects and the in homogeneousness of the gravitational fie! ld cannot be distinguished from weightlessness collectable to the absence of gravity from a body nearby. As an example, an drive on free fall trajectory results in the weightlessness of objects in a falling elevator. The same type of accelerated free fall trajectory causes weightlessness of objects in orbit well-nigh the Earth. Such objects are in free fall toward the Earth, as in the falling elevator, but they...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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