The value of acceleration due to gravity

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(B) The Earth is not a perfect sphere; it is flattened at the poles and bulges at the equator. As a result,the distance from the center of the Earth t

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is least on equator

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(B) The Earth is not a perfect sphere; it is flattened at the poles and bulges at the equator. As a result,the distance from the center of the Earth to the surface is greater at the equator than at the poles. The formula for acceleration due to gravity is $g = \frac{GM}{R^2}$,where $g$ is inversely proportional to the square of the radius $(R)$. Since the radius $R$ is largest at the equator,the value of $g$ is least at the equator.

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