Catapult Lab could someone assist me?

[DLovas]

Homework Statement

http://i.minus.com/i725WMEqetlYA.jpg

Homework Equations

y=Voy * t + 1/2(9.8)t^2
VFy^2=Voy^2 + 2gy
Vox=Magnitude(Cos(Angle))
Voy=Magnitude(Sin(Angle))

The Attempt at a Solution

No clue

 

[tiny-tim]

Welcome to PF!

Hi DLovas! Welcome to PF!

(try using the X² button just above the Reply box )

Start by finding how long it will take to cross the 104 m vertical line.