# Question qbout uniform circular motion

1. Jan 19, 2006

### abhijitlohiya

A particle is performing uniform circular motion.If the angular displacement is finite then whether angular velocity is a vector quantity or not?abhijitlohiya@gmail.com

2. Jan 19, 2006

### HallsofIvy

Staff Emeritus
I'm not sure I understand your question. How can angular displacement NOT be finite? Angular velocity, just like velocity is, by definition, a vector quantity.

3. Jan 21, 2006

### abhijitlohiya

finite angular displacement do not obey the associative and commutative law of vector addition,so is not a true vector.is it so?infinitesimal angular displacement is a vector.is it correct?

Last edited: Jan 21, 2006