Answer:
[tex]F_G=2.04\ .\ 10^{-10}\ Nw[/tex]
Option J
Step-by-step explanation:
Newton's Universal Law Of Gravitation
Newton discovered that all objects attract each other with a force of gravitational attraction which is proportional to their masses and inversely proportional to the square of the distance between them.
[tex]\displaystyle F_G=G\frac{m_1m_2}{d^2}\ ,\ G=6.673\ .\ 10^{-11} N m^2/kg^2[/tex]
Where [tex]m_1, m_2[/tex] are the masses in kg and d is the distance between them in meters.
In the problem, we have
[tex]m_1=m_2=3.5\ kg[/tex]
[tex]d=2\ meters[/tex]
[tex]\displaystyle F_G=6.673\ .\ 10^{-11} N m^2/kg^2\frac{(3.5kg)(3.5kg)}{(2m)^2}[/tex]
[tex]\boxed{F_G=2.04\ .\ 10^{-10}\ Nw}[/tex]