# Vectos angular momentum

1. Nov 1, 2004

### physicsss

A particle is at the position (x,y,z) = (1.0, 2.0, 3.0) m. It is traveling with a vector velocity (-4.0, -5.6, -5.4) m/s. Its mass is 7.6 kg. What is its vector angular momentum about the origin?

2. Nov 1, 2004

### Galileo

The angular momentum is $\vec L = \vec r \times \vec p$
It's pretty straightforward. You're given $\vec r$ and getting $p$ from $m$ and $v$ is easy.
So just calculate their cross product.