Question

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

Answer 1

Answer:

At the centre of Earth, the force due to upper half of the Earth will cancel the force due to lower half. ... Therefore, when F=0, then g has to be 0. Thus, the value of g is zero at the centre of Earth.

Answer 2

Answer:

because center of earth is not so big to create g

as the mass increases the g force will also increase