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## Homework Statement

Okay so, particle of mass 4kg moves in positive x direction with v=8m/s along line y=4m. Find angular momentum relative to point (x,y) = (1m, 10m)

## Homework Equations

Angular momentum L=mrxv

## The Attempt at a Solution

Basically, I set my velocity vector = (8i+0j)m/s and my position vector = (i -6j)m. I determined this position vector from the point (1,10) to the position of the velocity vector(0,4) and then just used the equation 4[(8i+0j)x(i-6j)] and came up with the answer -192 kg*m^2/s.

So my question I guess is did I determine my position and velocity vectors correctly and did is this how the angular momentum equation should be done?

Thanks!