Magnitude of the angular momentum of a particle (8-23)

Question 1 of 3

Question

Component of the particle’s linear momentum perpendicular to the vector $\vec{r}$ from rotation axis to particle

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Review

To relate angular momentum to Equation 26-18, we express $L$ in terms of the mass of the electron $m_{\mathrm{e}}$ , its speed $v$ , and its distance from the center of the atom $r$ using Equation 8-23:

Since the electron moves in a circle, the vector from the rotation axis to the particle always has the same radius $r$ and is always perpendicular to the momentum vector.