Question

where F is the magnitude of the gravitational attraction on either body, m1 and m2 are the masses of the bodies, r is the distance between them, and G is the gravitational constant. In SI units, the units of force are kg⋅m/s2, the units of mass are kg, and the units of distance are m. For this equation to have consistent units, the units of G must be which of the following?

Answer 1

In SI units, the universal gravitational constant is

         6.67 x 10⁻¹¹        newton-meter² / kilogram²  .

       The unit can also be written as         meter³ / kilogram-second²  .