Recent content by Saulius

Thanks everyone, I finally found the correct density distribution! :)

OK, I'm having one more problem here. Using the definition of Young's modulus, I was able to get the amount of stretching dy on each infinitesimal interval of the spring dx, which is dy = \frac{mg}{SEL} x \, dx If I integrate that, I'll get the total stretch, which is \Delta L =...

Thanks, the spring constant vs. Young's modulus explanation fixed my problem! :>

Um, well I always thought that the spring constant is well .. a constat, and it doesn't matter if I chop up the spring and take only a dx peace of it. And my problem was that when I took an element dx, k dx, according to Hooke's law, was mass of the spring below * g, which is finite and doesn't...

I don't really care about what exactly is being stretched, as long as it adheres to Hooke's law. My problem is actually to get consistent equations when something is being stretched by it's own weight - I can't seem to write them down, since, as I've stated, each infinitesimal length of the cord...

I was watching a curled up electric cord hanging lose in my bathroom and started wondering about the way it stretches - the beginning is stretched the most, since it is being stretched by the whole cord below, as it goes down it is stretched less and less until at the end it is essentially not...