vectos angular momentum

[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?

[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.