It is common to see a heap of conical shape formed by a large number of similar size hard spherical objects, for example, a heap of pebbles, sand etc. Suppose we want to model this system as a collection of identical hard balls, with dry friction between the balls described by coefficient $\mu_1$ and the friction between the balls and the floor described by coefficient $\mu_2$. Based on a "toy" problem with three cylinders forming a pyramid one can conjecture that there is some threshold condition for $\mu_1$ and $\mu_2$ that guarantees equilibrium for a heap. What are the conditions for a heap of identical hard spheres to be in a static equilibrium?
Subscribe to:
Post Comments (Atom)
-
I was solving the sample problems for my school's IQ society and there are some I don't get. Since all I get is a final score, I wan...
-
Are C1, C2 and C3 connected in parallel, or C2, C3 in parallel and C1 in series with C23? Btw it appeared as a question in the basic physics...
-
500 are at my end, 500 are at my start, but at my heart there are only 5. The first letter and the first number make me complete: Some consi...
No comments:
Post a Comment