Question

explain why the value of g is zero at tbe centre of the earth.

Answer 1

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.

HOPE THIS ANSWER HELPS YOU

Answer 2

heya mate,

your answer==>

the value of g is zero at centre of Earth because when we put the value of radius in the formula to calculate g.

hope it helps you..