Suppose that angular velocity of rotation of earth is increased. Then, as a consequence :

Options

A. there will be no change in weight anywhere on the earth
B. weight of the object, everywhere on the earth, will decrease
C. Weight of the object, everywhere on the earth , will increase
D. except at poles, weight of the object on the earth will decrerase

Answer

D

Explanation

With rotation of earth or latitude, acceleration due to gravity vary as g. = g - `omega^(2) R cos^(2) phi`
where `phi` is latitude , there will be no change in gravity at poles as `phi = 90^(@)`
At all other points as `omega` increases g. will decreases hence, weight , W = mg decreases.