There is a projectile that explodes into equal mass fragments at its highest point. One falls vertically with initial speed. I need to find where the other will strike the ground and the energy released during the explosion. I am given the mass(19.6kg), angle (56 degress), initial velocity(79.0m/s), and g (9.8m/s^2). I know i need to use center of mass somehow but I really do not know how to go about solving this and could use some help.