Question

The value of g is higher at the poles as compared to the centre of the earth and hence the value of g is zero at the centre of the earth​

Answer 1

QUESTION

The value of g is higher at the poles as compared to the center of the Earth and hence the value of g is zero at the center of the Earth​.

ANSWER

Yes, it is true that value of "g" is greater at poles than that of at equator of earth. But value of "g" at Equator is 9.8 not 0.

To understand this mechanism better let us take an example that in magnet the poles attract or repel stronger that the center but that doesn't mean that there is no magnetic attraction at center. Similarly, gravitational power at poles is more than that of center of Earth but value of g at center of Earth is not 0.

Answer 2

$\bold{Answer}$

When we move towards centre of earth, the mass is equally distributed in all directions. Thus, all the gravitational forces applied cancel each other and acceleration due to gravity (g) at centre of earth on centre of earth becomes zero (0).Apr