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3. Explain why the value of g is zero at the centre of the earth.
in Chapter 1: Gravitation by Expert (10.7k points) | 86 views

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Acceleration due to the earth's gravity is zero at the centre of the Earth because at that point the mass of the earth is equally distributed in all directions, so pulling equally in all directions for a net zero pull. As the distance from the centre decreases, the acceleration due to gravity also decreases.

Hence , the value of g is zero at centre .
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