Kelajuan Efektif dan Kelajuan Rata-Rata

(A)   kelajuan rata-rata gas

\begin{equation*}
\begin{split}
\bar v & = \frac {v_1 + v_2 + v_3 + \dotso}{N} \\\\
\bar v & = \frac {100 + 200 + 500 + 600}{4} \\\\
\bar v & = \frac {1400}{4} \\\\
\bar v & = 350 \text{ m/s}
\end{split}
\end{equation*}

(B)   kelajuan efektif molekul gas

\begin{equation*}
\begin{split}
v_{\text{rms}} & = \sqrt {\frac {v_1^2 + v_2^2 + v_3^2 + \dotso}{N}} \\\\
v_{\text{rms}} & = \sqrt {\frac {100^2 + 200^2 + 500^2 + 600^2}{4}} \\\\
v_{\text{rms}} & = \sqrt {\frac {10000 + 40000 + 250000 + 360000}{4}} \\\\
v_{\text{rms}} & = \sqrt {\frac {660000}{4}} \\\\
v_{\text{rms}} & = \sqrt {165000} \\\\
v_{\text{rms}} & =50 \sqrt{66} \text{ m/s}
\end{split}
\end{equation*}