Planet Zero Has a Mass of 5

Multiple Choice

Planet Zero has a mass of 5.0 *10²³ kg and a radius of 2.0 * 10⁶ m.A space probe is launched vertically from the surface of Zero with an initial speed of 4.0 km/s.What is the speed of the probe when it is 3.0 * 10⁶ m from Zero's center?

A) 3.0 km/s
B) 2.2 km/s
C) 1.6 km/s
D) 3.7 km/s
E) 5.9 km/s