The bulging of the earth at the equator and flattening at the poles is due to

Options

A. centripetal force
B. centrifugal force
C. gravitational force
D. electrostatic force

Answer

d

Explanation

`PE_(2)-PE_(1)=-(GMm)/(R+h)`
`=Gmm[(1)/(R)-(1)/(R+h)]`
`=GMm[(1)/(R)-(1)/(R+10R)]`
`=(GMm)/(R)[1-(1)/(11)]`
`=(GMm)/(R)[(11-1)/(11)]`
`=(10)/(11)(GMm)/(R)`