One end of a uniform 6.0 m long rod of weight w is supported by a cable. The other end rests against the wall, where it is held by friction (see Fig. P8.28). The coefficient of static friction between the wall and the rod is µs = 0.50. Determine the minimum distance, x, from point A at which an additional weight w (the same as the weight of the rod) can be hung without causing the rod to slip at point A.