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प्रश्न
Is there any meaning of "Weight of the earth"?
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उत्तर
Weight of a body is always because of its gravitational attraction with earth.As law of gravitational attraction is universal so it applies to any two bodies (earth and sun as well).So we can define the weight of earth w.r.t a body of mass comparable or heavier than earth because of its gravitational attraction between earth and that body.
But practically no body on earth has mass comparable to earth so weight of earth will be a meaningless concept w.r.t earth frame.
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संबंधित प्रश्न
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Take the effect of bulging of earth and its rotation in account. Consider the following statements :
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Find the acceleration due to gravity of the moon at a point 1000 km above the moon's surface. The mass of the moon is 7.4 × 1022 kg and its radius is 1740 km.
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Explain the variation of g with depth from the Earth’s surface.
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- Acceleration due to gravity is independent of the mass of the earth.
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(Radius of earth = 6400 km)
