How do I calculate the normal force using vector components?

[gigaubunntu]

Homework Statement

I know how to calculate F_act by adding F_N and F_g as vectors. But I completely forgot how to calculate F_N! We did forces a few months ago and I'm going over past tests. I'm stumped. I feel pretty dumb ATM.

Homework Equations

Unsure.

The Attempt at a Solution

I don't know where to go from here. I made you all a diagram:

 

[holezch]

There are no other forces in the direction opposite of your normal force vector into the ramp, so the block's weight will be the only thing that contribute to the normal force

 

[gigaubunntu]

So the Fn is the opposite of Fg, so 9.8 x 10 = 980 N?

 

[holezch]

no, Fn is not the "opposite" of Fg
Fg is pointing down, while Fn is on a diagonal

 

[gigaubunntu]

Okay so how do you calculate Fn?

 

[holezch]

big hint: vector components..