Given data
*The gravitational force between two masses is F = 20 N
The formula for the gravitational force between the two masses is given as
[tex]F=\frac{\text{GMm}}{r^2}[/tex]As from the given data, if the distance between them is doubled; i.e r =2r. Then the gravitational force between the two masses is given as
[tex]\begin{gathered} F_1=\frac{\text{GMm}}{(2r)^2} \\ =\frac{\text{GMm}}{4r^2} \\ =\frac{F}{4} \\ =\frac{20}{4} \\ =5\text{ N } \end{gathered}[/tex]