Determine the acceleration of gravity on the Moon, if the mass of the Moon is 7.3 * 10 ^ 22 kg

Determine the acceleration of gravity on the Moon, if the mass of the Moon is 7.3 * 10 ^ 22 kg, and the radius of the Moon is taken equal to 1700 km.

Answer: 1.68 m / s ^ 2.
Explanation of the solution to the problem: to solve this problem, you must use the following formula:
g = G * M / R ^ 2, where g is the acceleration of gravity on any planet in m / s ^ 2; G – gravitational constant,
G = 6.67 * 10 ⁻¹¹ m³ · s ⁻² · kg ⁻¹; M is the mass of the planet in kg, R is the radius of the planet in m.
First, you need to convert the radius to the SI system: R = 1700 km = 1700 * 1000 = 1700000 m.
Now we substitute all the values into the formula:
g = G * M / R ^ 2 = 6.67 * 10 ⁻¹¹ * 7.3 * 10 ^ 22 / 1,700,000 ^ 2 = 1.68 m / s ^ 2.