Question

3. Explain why the value of g is zero at
the centre of the earth.​

Answer 1

Answer:

the value of g, 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.

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Answer 2

Answer:

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.

At the centre the distance is zero, hence gravity is zero.