A 1.7-kg firework is fired from the ground straight up on a planet with
whose mass is 1.3 times the mass of Io and whose radius is 2.2 times
the radius of Haumea. The firework will not explode until the moment.
where it would have started to move back down again. The initial
speed of the firework is 51.3 m/s. Use this information to find the
height at which the firework explodes and the time it will be traveling
upward.