IF g IS ZERO AT EARTH'S CENTRE THEN WHY DO WE SAY THAT THE EARTH ATTRACTS EVERY OBJECT TOWARDS ITS CENTRE.g=GM/RR SO IF g IS ZERO THEN GRAVITY IS ALSO ZERO. THEN WHY DO WE SAY SO

Asked by architsrivastava02 | 12th Aug, 2010, 12:26: PM

Expert Answer:

There is a difference between a body being at the surface of earth or away from it and it being at the centre of the earth.
At the surface of earth or above all of earth mass attracts it and as we know CG of earth is at it's centre, hence we say that the body will be attracted towards it's centre.
But if the body were to be at the centre of earth it will not experience any gravity since g is zero there.
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Answered by  | 12th Aug, 2010, 02:03: PM

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