Question

Determine the angular momentum of a 72-gg particle about the origin of coordinates when the particle is at xxx = 5.0 mm , yyy = -5.8 mm , and it has velocity υ=(3.1i^−8.2k^)m/sυ=(3.1i^−8.2k^)m/s.Find the xx-component.

Answer 1

$\overrightarrow{L}=[\overrightarrow{r},\overrightarrow{p}]=m[\overrightarrow{r},\overrightarrow{v}]=$

$=0.072\cdot[(0.005\overrightarrow{i}-0.0058\overrightarrow{j}),(3.1\overrightarrow{i}-8.2\overrightarrow{k})]=$

$=0.0034\overrightarrow{i}+0.0029\overrightarrow{j}+0.0013\overrightarrow{k}$ . Answer

$L_x=0.0034\ (kg\cdot m^2/s)$ . Answer