bomb (a) 2.0 seconds and (b) 3.0 seconds al 2. . An Extraterrestrial Volcano The first active volcano observed outside the Earth was discovered in 1979 on lo, one of the moons of Jupiter. The volcano was observed to be ejecting material to a height of about 3.00 x 10' m. Given that the acceleration of gravity on Io is 1.80 m/s, find the initial velocity of the ejected material. Time Here's something you can try at home-an and. letting