An astronaut is standing on the surface of a planetary satellite that has a radius of 1.74 x 106 m and a mass of 10.92 x 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)