Calculating velocity of a block on a slope using work theorem

[okgo]

Homework Statement

http://www.screencast.com/users/ntrinh3/folders/Jing/media/7b6a2810-2827-44c3-adfc-cd27d564b812

Homework Equations

Wnet=change in KE

The Attempt at a Solution

so I made the coordinate with x positive in right direction and y is positive up.
Fdcos30-mgh=.5mv^2
40*.2*cos30 - 5*9.8*sin15*.2 = .5*5*v^2
I got velocity to be .900

The correct answer was .6

 

[okgo]

oh nvm. I stepped away from this problem and realized the angle between the work and force was wrong.