Question

Prove the value of g is zero at center of earth

Answer 1

heya!


here is your 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.

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Answer 2

because at the center the mass above u is the same as the mass beneath u. the mass in front of u is as the same as the mass behind u and so on. therefore all the gravitational forces cancel out each other. therefore the value of small g is zero at the center of the earth