Question

Using the known radius of the Moon of 1737 km and that the average value of gravity is 1.625 m/s^2 at the Moon’s surface, find the mass and the average density of the Moon (the universal gravitational constant is 6.674 * 10^-11 N*m^2/kg^2).

Answer 1

We know

Putting values

So, the mass of the moon is 7.3463 x 10²² kg.

Now, the average density

So, the average density of the moon is 3346.407 kg/m³.