The angular velocity of the earth with which it has to rotate so that the acceleration due to gravity on `60^@` latitude becomes zero is

The acceleration due to gravity at the equator becomes zero, if

At what depth the acceleration due to gravity becomes zero ?

At what depth the acceleration due to gravity becomes zero ?

At what depth the acceleration due to gravity becomes zero ?

Calculate angular velocity of the earth so that acceleration due to gravity at 60^(@) latitude becomes zero (radius of the earth = 6400 km, gravitational acceleration at poles = 10 m//s^(2) , cos60^(@) = 0.5 )

Calculate angular velocity of the earth so that acceleration due to gravity at 60^(@) latitude becomes zero (radius of the earth = 6400 km, gravitational acceleration at poles = 10 m//s^(2) , cos60^(@) = 0.5 )

What is the effect of rotation of the earth on the acceleration due to gravity?