Calculating Time for Ball to Reach Fence Plane

[Beanie]

Homework Statement

Determine the time it takes for the ball tor each the plane of the fence. Answer in units of s.

(VIEW IMAGE ATTACHED)

Homework Equations

Vf+vi+at
d=vit+.5at^2
vf^2=vi^2+2ad

The Attempt at a Solution

[/B]
I found Vix to be 11.59 using trig. I then used the second equation to find time as 1.725. However, this answer wasn't correct.

What am I doing wrong? Any suggestions on different ways to do this?

 

[phinds]

Kind of hard to say what you are doing wrong since you didn't post any work. Also, your picture is upside down.