The acceleration due to gravity at the latitude 45^(@) on the earth becomes zero if the angular velocity of rotation of earth is equal to

The acceleration due to gravity at the latitude 45^(@) on the earth be

1.	The acceleration due to gravity at the latitude 45^(@) on the earth becomes zero if the angular velocity of rotation of earth is equal to
Answer» `SQRT((2)/(GR))` `sqrt(2gR)` `sqrt((2G)/(R))` `sqrt((5R)/(2))` ANSWER :C