The Wigthness

Weightlessness The definition and use of Weightlessness is difficult. Weight means the suck exerted by gravity, burdenless means the absence of such forces and lightness officially means the condition of zero gravitational force. In popular use, however, freightlessness (often with quotation marks) has the meaning given in the antedate paragraph. Astronauts and cosmonauts in the International Space Station be give tongue to to meet weightlessness, even though, at an altitude of a fewer blow km, their weight (the gravitational force acting on them) is exactly active 10% less than on earth. Their setting 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 alike(p) acceleration towards the earth. Consequently, in the frame of the space station, an unsupported individual appears to father no acceleration and so his relative transaction in this frame is the sam e as that of a somebody without weight in a spacecraft that is not accelerating. If objects atomic number 18 removed from a star, planet, moon, or other such ample body, so that they experience very little gravitational interaction with them, they would speak to the condition of zero gravity.

If they be close to a massive object, but are unornamentedly accelerating towards the mass by gravitational acceleration only, they are in  impoverished fall and are weightless. Physically, they both follow Newtons first law of motion which describes analogue motion. Such a situation, except for microgravity effects a nd the in homogeneousness of the gravitatio! nal field cannot be distinguished from weightlessness collectable to the absence of gravity from a body nearby. As an example, an expedite 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  roughly 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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