An Astronaut Is Standing on the Surface of a Planetary

question 34

Short Answer

An astronaut is standing on the surface of a planetary satellite that has a radius of
1.74 × 10⁶ m and a mass of 7.35 × 10²² kg.An experiment is planned where a projectile needs to be launched straight up from the surface.What must be the minimum initial speed of the projectile so it will reach a height of 2.55 × 10⁶ m above this satellite's surface?
(G = 6.67 × 10^-11 N ∙ m²/kg²)