If the earth were to spin faster, acceleration due to gravity at the poles :

Options

A. `(gR^(2))/(R+h)`
B. `gR`
C. `(gR)/(R+h)`
D. `sqrt((gR^(2))/(R+h))`

Answer

D

Explanation

Orbital velocity, `v_(o)=sqrt((GM)/(r))=sqrt((gR^(2))/(R+h))`