One end of a uniform 4.0-m long rod of weight
w is supported by a cable. The other end rests against the wall, where it is held by friction. The co-efficient of static friction between the walla nd the rod is .50. Determine the minimum distance,x,from point A at which an additional weight w(same as the weight of the rod) can be hung without causing the rod to slip at point A.
i cant find a picture but i hope that someone can truly help me on this problem..i have been working on this for a few days now and its really pissing me off T___T please help
2007-01-25 14:07:49 · 1 answers · asked by Becky 2 in Science & Mathematics ➔ Physics
The frictional force is dependent on the force perpendicular to the wall. Most walls are vertical so the rod must be something other than horizontal for there to be a force perpendicular to the wall holding the end against the wall. The angle of the rod is a required piece of information that has not been included in your description of the problem. I guess it would also be possible for the cable to be connected to the wall and the rod to be perpendicular to the wall. In that case the angle of the cable would be the critical information that is missing.
2007-01-27 16:41:42 · answer #1 · answered by anonimous 6 · 0⤊ 0⤋