Question

Explain why the value of gravitation (g) is zero at the centre of the earth ?

Answer 1

Hey mate

Here is ur ans☺☺☺

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Answer: 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.
 

Answer 2

because earth attract everything to its centre