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At what depth the acceleration due to gr...

At what depth the acceleration due to gravity becomes zero ?

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As `g . = g [1-d/(R_(e))] `
` :. g [ 1 - d/(R_(e))] = 0 `
` 1 - d/(R_(e)) = 0 `
` :. 1 = d/(R_(e))
` :. d = R_(e)`
So , if we move to the centre of earth then the acceleration due to gravity becomes zero .
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