Help with rotational dynamics problem from image

[boberth2o]

There is this problem that I am having trouble with, can someone guide me through this problem. Thanks

http://img227.imageshack.us/img227/2681/scan0003eq3.png

 

[tiny-tim]

Hi boberth2o!

Draw the board with the forces added … that's a normal force at wall 1, and both a normal and friction force at wall 2, and of course the weight.

Then take components, or moments, as appropriate.