Question

what is the value of gravity at the centre of the earth and on the surface of the earth​

Answer 1

⠀⠀ ⠀ ⠀⠀ $\huge{\tt{\red{❥}\green{A}\purple{N}\pink{S}\blue{W}\orange{E}\red{R}}}$At the very center, the gravitational force is zero because there's equal mass pulling on you from all sides, and it all cancels. If you built a room there, you could float around freely. That's what it means to say that gravity is zero at the center of Earth.

Answer 2

Answer:

at the surface of earth, g= 9.80665 m/s2

at the centre of earth, theoritically g = 0 m/s2