Question

Why acceleration is greater at poles than the equator??

Answer 1

As you know that,
g=GM/R*R
here,
'g' stands for acceleration due to gravity
'G' stands for gravitational constant
'M' stands for mass of the earth
'R' stands for radius of the earth
from the above equation,
Radius of the earth 'R' is inversely proportional to 'g'
As you we know earth is not completely circular but elliptical in shape
It is flattened at poles so 'R' is less at poles than at equator
Therefore, less value'R'=more value of'g'
Hence, the value of'g'is more at the poles than equator.