Iíve come across a physics problem and attempted to solve it, but Iíve forgotten a lot of it and havenít arrived at a solution. See the attached pic.
Can someone guide me in the right direction or solve it?
sin 30ļ = h / PQ
1/2 = 2 m / PQ
PQ = 4 m
Fg * cos 30ļ * 4m * μ = Fg * x * μ
cos 30ļ * 4m = x
sqrt(3)/2 * 4m = x
x = 2 * sqrt(3)
Anyhow, I fail to obtain μ and I feel like my approach is wrong and x is thus also wrong.