Recent content by illu45

Try thinking about the forces acting on the water (and the bucket) while the bucket is at the top and bottom of the circle. Draw a free body diagram or two, it should help you out a bit. Hope that helps, illu45

Hi all, I'm a bit puzzled by one of my homework questions. I got an answer, but I have nothing to check it with and I'm not sure that my answer is correct. The question states that y=ln(ln(ln(x))), and asks for y'. This is what I've done, but it seems a bit too simple to me...

well, you'll need to build some sort of slingshot, from my guess. Here's my analysis of materials: 2 sheets of 8.5x11 paper - not sure, maybe to fold/construct some sort of base/legs? 1 paper clip - connector 2 baloons - elastic = can be used as rubber bands. Can be inflated, but I see little...

I think I understand it now... For the bucket, F(c)=F(g)+T, which, as Hootenanny said, can be written as F(g)+T=m*v^2/r. At the minimum speed, however, the rope will be "loose", meaning that there is no tension. Thus, T=0 and mg=m*v^2/r, g=v^2/r For the water inside the bucket...

Hello all, This is (I think) one of the more popular introductory physics questions. Someone ties a bucket to a rope, puts some water in it and swings it around in a vertical circle with relatively constant speed. When the bucket is directly above the person's head, the water stays in the...