Question

Given the radius of the Moon is 1.74 x 10^6 m and the mass of the Moon is 7.35 x 10^22 kg. What is the escape velocity required for a rocket to leave the Moon? [Constant Gravity G = 6.67 X 10^-11 Nm^2 kg-2

Answer 1

The escape velocity is

$$v=\sqrt{\frac{2GM}{R}}=2373\text{ m/s}.$$