Conservation of motion what the velocity of other fragment

[leonne]

Homework Statement

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?

Homework Equations

v=(m1*v1+m2*v2)/ m1+m2

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.

 

[zorro]

Let the other fragment move at an angle (theta) to the horizontal.
Apply momentum conservation in x and y directions.
Solve 2 equations and you will get your answer
I got v=(5)^1/2 V0 at an angle 26.6 degrees N-E

 

[leonne]

k thxs ill try it out