The earth of mass `6xx10^(24)kg` revolves round the sun with angular velocity `3xx10^(-7)"rad/s"` in a circular orbit of radius `.5xx10^(8)km.` Then the force exerted by the sun on the earth in newtons, is

Options

A. `18 xx 10^(25)`
B. zero
C. `27 xx 10^(39)`
D. `36 xx 10^(21)`

Answer

D