1. The problem statement, all variables and given/known data A shell traveling with speed Vo exactly horizontally and due north explodes into 2 equal mass fragments. One fragment traveling vartically up with speed V0 what is the velocity of the other one? 2. Relevant equations v=(m1*v1+m2*v2)/ m1+m2 3. The attempt at a solution Would I just use this equation and just solve for V2? This is the only formula in the book section that looks like I could use to solve it. But not sure cause this formula is for 2 separate objects that hit each other then moves as a single object, thinking maybe i can make it as a single object that then breaks into 2 objects.