I hope this is the right forum, this is mostly about maths, I'm not looking for a physical interpretation of angular momentum... yet. It also involves *some* calc... anyway...(adsbygoogle = window.adsbygoogle || []).push({});

OK, firstly, I've come to the conclusion I don't get cross products. I understand the properties of them, and can use them OK, there's just something I came across that I don't get. Say you have [itex]\vec{a}\times\vec{b}=\vec{c}[/itex]. Apparently, the magnitude of c is given by the area of the parallelogram formed by a and b. I'm ok with the product axb having units of area, but when you then go and say c has a length that is an area.... I get a bit lost. How am I supposed to interpret that?

Actually, scrap the second part, I'm an idiot!

Oh, and my lecturer always seemed to swap between J and L, both apparently for angular momentum. They mean the same thing, right? Or have I completely not understood anything??

I'll be back. I hate angular momentum.

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# Homework Help: Vectors and angular momentum

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