How could you determine mass of the moon?

To determine the mass of the Moon, you can use the gravitational attraction between the Moon and a spacecraft or an object in orbit around it. By measuring the orbital parameters of the spacecraft, such as its orbital radius and period, you can apply Kepler's third law of planetary motion. This law relates the orbital period to the mass of the Moon, allowing you to calculate its mass using the formula ( M = \frac{4\pi^2 r^3}{G T^2} ), where ( G ) is the gravitational constant, ( r ) is the orbital radius, and ( T ) is the orbital period.