Recently I asked a question on physics stack exchange. It was closed with a reference to faq guidelines.
Here is the question that was closed: Maximum period of a vertically spinning ball.
Please note that while this was not a "homework" question, I can understand that it is classified as a homework question according to the faq referenced above. The wisdom of applying "homework" tag to my question is still mysterious to me since the definition of that tag is so general that it can be applied to almost any question that asks for application of general concepts to a particular problem. But that's not the issue that I want addressed. Let's assume that it is indeed a "homework" question.
The issue that I want to address is (1) how this question is inconsistent with the faq guidelines?
Although I do not find any inconsistencies with the guidelines myself, I have to assume that such inconsistency does exist since it was closed. If that inconsistency can be pointed, I'd also appreciate a pointer or two on (2) how to ask an "acceptable" question that qualifies as "homework" under the guidelines. By "acceptable" I mean a question that won't be closed.