Sniper Fish's Projectile Motion

[JamesPKing]

Homework Statement

[PLAIN]http://jpk.co/hwhelp.png

Homework Equations

Projectile motion formulas.

The Attempt at a Solution

I have attempted to solve this problem for over 3 hours without a solution, please can someone help me?

 

[Funkmaster W]

first you are going to want to split your velocity up into components even though you don't know what v is you can still end up with two V with different coefficients and then you can put those into your equations and then solve through use of simultaneous equations.