If you were standing inside the Earth at a radius where half the Earth's mass was above you and half the Earth's mass was below you,the gravitational pull of the Earth would be one half of that on its surface.

Question

Quizplus · Accepted Answer

The gravitational pull inside a spherical shell of uniform density is zero, so only the mass below you contributes to gravity. At this radius, the gravitational pull is less than half of that on the surface.

If You Were Standing Inside the Earth at a Radius