Statics Questions involving finding forces

[Kalookakoo]

Homework Statement

http://ft.trillian.im/b0f9eae6eee2cb82091d0bd460ed09948b0cf819/6bh6EcByYLCp8YJWVJ5pqqnrqKcIY.jpg

Homework Equations

Fx= Fcos(theta)
Fy=Fsin(theta)

The Attempt at a Solution

Starting with number one, I can't understand how to find the force given by that contact by B. The vertical force on the spring can be found by the given constant and distance of course.

I can't even see the forces on the other 2. So hard to visualize a FBD >.<

 

[tiny-tim]

Hi Kalookakoo!

Starting with number one, I can't understand how to find the force given by that contact by B.

The force between the roller and that thing at the bottom must be perpendicular to the surface (so through the centre, B, of the roller) …

so, doing a free body diagram for the roller on its own, the direction of the force at B must be … ?