Question

- The acceleration due to gravity at the poles
is 10ms and equitorial radius is 6400km for
the earth. Then the angular velocity of rotation
of the earth about its axis so that the weight
of a body at the equator reduces to 75% is​

Answer 1

The acceleration due to gravity at the poles is

and equitorial radius is

for the earth. Then the angular velocity of rotaiton of the earth about its axis so that the weight of a body at the equator reduces to

is