Thank you friends for all your replies. And thank you @Chestermiller for your explanation. I think I get your point. I have to learn Mechanics of Materials...
Thank you @Nidum for the picture you've provided. This is an almost perfect graphical description of the system I've had in mind. As for the thing I was trying to achieve, it is quit simple. I was trying to apply the knowledge from the statical mechanics to the real life situations. For...
Exactly. But such cases do exist and they are even mentioned in several books on vector mechanics. I've red somewhere that one additional equation could be added by considering material you are using in a structure. Basically using the material property like elasticity limit or yield strength...
You are right, I forgot to mention what kind of load beam has. Okay, in my case there are two forces to consider. The first is a weight and the second is a force directed downwards at some angle "alpha" (basically it has horizontal and vertical component). And there is another issue here: the...
Suppose I have a beam and I would like to constrain it (two dimensional structure). At one end I've chosen to use support which constrains motion only in "x" and "y" direction (horizontally and vertically), but it doesn't prevent a body from rotation. Because of that, another beam's end have...
In my experience the simplest questions are the hardest to answer. Because they require to press all the physical and mathematical background in one sentence. :) Perhaps you've already answered your question yourself, mentioning the necessity for a physical quantity to have a direction and an...