Use a coordinate plane so that the incline of your ramp, Ff, Ff and Fa are along the x-axis, and Fn is along the y-axis. Then you can figure out the components of the weight using the angle they give you (break the weight into its components along the incline and perpendicular to the incline).
so then would this picturehttp://img136.imageshack.us/my.php?image=toottup2.png be correct??
and to find the x component of the Fg i would have to do (cos30)mg and to find the y component i would have to do (sin30)mg?
yea because the block stays down it doesnt like go through the incline of go above in the air like it stays on the incline so both the forces have to be the same.
i m sryy its just my teacher doesnt teach anything he talks about his life so its basically a self study class and i want to understand the material because I know i am going to have to take a year of physics in college and i dont want to go in their knowing nothing. i want to atleast have a background layed.