Dictionary:Rms velocity

${\displaystyle V_{rms}={\sqrt {\frac {\sum V_{i}^{2}t_{i}}{\sum t_{i}}}}}$
The average velocity for this path, ${\displaystyle {\bar {V}}}$, on the other hand, is
${\displaystyle {\bar {V}}={\frac {\sum V_{i}t_{i}}{\sum t_{i}}}}$