Velocity
rate of change of the position of an object as a function of time, and the direction of that change
peculiar velocity
four-velocity
hull speed
relative velocity
phase velocity
transonic
escape velocity
tempo
first cosmic velocity
orbital speed
group velocity
radial velocity
fourth cosmic velocity
third cosmic velocity
advisory speed
sound particle velocity
design speed
cosmic velocity
faster-than-light
flow velocity
terminal velocity
reaction time
explosive velocity
drift velocity
muzzle velocity