Question

Write the formula to find the magnitude of gravitational force between the earth and the moon

Answer 1

Suppose the earth is a sphere of mass M and radius R and if an object of mass M is placed on the surface of the earth,then the magnitude of the gravitational force between the body and the earth will be
       Mm
F=G------, its r sq.not r2 F=G Mm by R sq.
        R2

Answer 2

F = GMm/R×R . It means F is equal to G that is 6.67× 10 ki power -11 × Mass of earth × mass of moon / Distance between earth and moon