Newton's law of universal gravitation is represented by F=G M m/r^2 Here F is the magnitude of the gravitational force exerted by one small object on another, M and m are the masses of the objects, and r is a distance. Force has the SI units kg m /s ^2 . What are the SI units of the proportionality constant G ?

 9. Newton's law of universal gravitation is represented by

F=G M m/r^2

Here F is the magnitude of the gravitational force exerted by one small object on another, M and m are the masses of the objects, and r is a distance. Force has the SI units kg m /s ^2 . What are the SI units of the proportionality constant G ?