Several volcanoes have been observed erupting on the surface of Jupiter's closest Galilean moon, Io. Suppose that material ejected from one of these volcanoes reaches a height of 5.00 km after being projected straight upward with an initial speed of 134 m/s. Given that the radius of Io is 1820 km,

(a) Outline a strategy that allows you to calculate the mass of Io.

(b) Use your strategy to calculate Io's mass.