The earth (mass=`6xx10^24` kg), revolves around the sun with angular velocity of `2xx10^(-7)` rad/s in a circular orbit of radius `1.5xx10^8` km. What is the force exerted by the sun on the earth ?

Explanation

The gravitational force exerted by the sun of the earth is equal to the CP force `(mv^2)/r =mrw^2`
`therefore F=mrw^2`
`6xx10^24xx1.5xx10^8xx10^3xx(2xx10^(-7))^2`
`3.6xx10^32` N.