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# Is it a fact that the weight of the earth is zero?

444546 ###### 2011-09-13 02:28:11

It better to ask "what is the mass of planet earth?" Approx. 6,000,000,000,000,000,000,000,000. The measurement of the planet's weight is derived from gravitational attraction that the Earth has for objects near it. Any two masses have a gravitational attraction for one another. The attraction however is extremely slight. From the measurement you this attraction of the two planets you can determine the mass of the two objects.

Newton showed that, for spherical objects, you can make the simplifying assumption that all of the object's mass is concentrated at the center of the sphere. The following equation expresses the gravitational attraction that 2 spherical object have on one another: F=G*M1*M2/R2.

R is the distance separating the 2 objectsG is a contant that is 6.67259x10(11)M(3/s2 kg.M1 & M2 are the 2 masses that are attracting each otherF is the force of attraction between them

The radius of the Earth is 6,400,000 meters (6.999,125 yards).

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## Related Questions AS WE KNOW, that there is the force of gravity at the center of Earth, if every part or portion of earth has its weight then net weight of the earth will be zero........  w=mg gravity is zero at centre of earth then g=0 and w=m(0) =0 so weight is zero The weight of a person is not constant at all places on the Earth. The weight becomes zero at the center of the earth or far away from the Earth.  Theoretically, Zero. The gravitational pull of the earth on you (which is the definition of weight), whether the earth is solid or hollow, is the same in all directions because it is spherically symmetrical. These forces cancel each other out, leaving you with zero net weight. In real life, the earth is not a perfect sphere, but this model describes the situation adequately. The weight will become zero under the following circumstances:In an artificial satelliteDuring free fallAt the centre of the earthAt a point where gravitational pull of earth is equal to the gravitational pull of the moon. In the cavity at the center of the Earth, your weight would be zero, because you would be pulled equally by gravity in all directions. - The gravitational field of Earth at its center is zero. Zero relative to the weighing machine. His same weight relative to the earth. In the middle of the earth is where an object has the lightest weight. The weight is zero. The reason is that the mass of the object is pulled equally in all directions so all the forces cancel out. ... a feeling as if his weight is zero, because he is constantly falling around the Earth in the satellite's orbit.. Zero. All the materials used to make the buildings and vehicles came from the Earth itself so the net result would be zero. yes in fact th voyager 1 returned to earth in 2007 and is not based on ground zero I find it curious that the auto-categorization feature assigned this question the category of "low carb diets." If your weight was zero on the Earth, then you must be either a photon or a neutrino, in which case your weight would be zero everywhere. The shed is of zero mass and zero weight The operating weight plus (+) the cargo weight equals (=) the zero fuel weight. The gravitational attraction is not by anything special in the center of the Earth; instead, it is the sum of the attraction by every individual atom.For an object in the center of the Earth, the pull in one direction will be exactly compensated by the pull in another direction.So it turns out that if you're anywhere inside a solid sphere, it acts as if none of the mass OUTSIDE of yourposition is there. You're only affected by the mass of the smaller sphere INSIDE your position, as if you wereon its surface, and the 'shell' outside of your position had gone away.The weight is zero at the center of the earth. since F= G M.m / 2 d at the center of the earth the distance is zero from the center thus no force is imaginable. a more profound explanation is that at the center you are being puled by every particle from all sides with equal forces, the net force is logically zero.since weight=mgand gravity at center of earth is zero(g=0)so weight is zero The answer is at the center of the Earth, where an mass or object has the negligible / lightest weight. The weight is proximate to be zero &amp; the reason is that the mass of the object is pulled equally in all directions so all the forces remain cancel out &amp; the weight becomes negligible / can be considered as zero. D C Naik It will steadily decrease as you move farther from the Earth's center of gravity. Eventually one's "Earth weight" can reach zero when the gravity of another body, such as the Moon or Sun, completely counteracts it. *In orbit, or freefall, measured weight is zero. In outer space, objects are always in "microgravity" having imperceptible weight, unless they approach close to another large body. It is non-zero.It is non-zero.It is non-zero.It is non-zero. If you had a 50kg weight on Earth, it would weigh ~zero on the space station. It would still have a mass of 50kg--meaning it would difficult to move, and hurt very bad if it wumped you on the head, but placed on a scale, it would show 0. Likewise, if you had that 50kg weight and a scale on an elevator here on Earth, the scale would read 50kg. Say at the top of a 100 floor building, the elevator's cable and safety devices broke and the elevator, you, the 50kg weight and the scale were all in free fall. For a very short time, the 50kg weight would weigh zero. You would weigh zero. The scale would weigh zero. Until the elevator hit the ground. The weight of an object is its mass times the acceleration of gravity. The acceleration of gravity at the center of the Earth is zero. A 1 kg mass at the center of the Earth still has a mass of 1 kg, but the force of attraction between the 1kg mass and all the other mass around it will add up to zero. Your mass would be unaffected, it is simply to do with the atoms in your body. Your weight would be reduced to zero as that is simply how much your body is affected by gravity.  Universality is a fundamental principle in physics - the same laws of physics apply everywhere at all times. So if the mass of something on earth is zero (such as the rest mass of a photon), then the mass will be zero everywhere in the universe, disregarding the effects of relativistic mass. Do not confuse mass with weight - mass is invariable - it is the same everywhere. Weight, however, diminishes in proportion to the square of the distance you travel away from the center of planet earth.

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