Calculating Forces on a Cantilever: Physics Homework Problem

[smhippe]

Homework Statement

A 3 m long cantilever with a mass of 250 kg is
attached to a wall and also held in place by a steel cable
that is attached to the far end of the cantilever at an angle
of 30° with respect to the cantilever as shown in the figure
at right. A 5 kg mass also hangs from the far end of the
cantilever. Solve for the horizontal and vertical components of this force and use them to determine the magnitude of the force acting on the cantilever.

Homework Equations

I= (1/12)M(L^2)
t=r X F


I just have no idea where to even begin.

 

[hotvette]

Can you post a figure illustrating the problem?