velocity

Noun
  1. Distance travelled per unit time (synset 115307914)
    is a type of: rate - a magnitude or frequency relative to a time unit
    subtypes:
    • angular velocity - (physics) the rate of change of the angular position of a rotating body; usually expressed in radians per second or radians per minute
    • airspeed - the speed of an aircraft relative to the air in which it is flying
    • escape velocity - the minimum velocity needed to escape a gravitational field
    • groundspeed - the speed of an aircraft relative to the ground
    • hypervelocity - excessive velocity
    • muzzle velocity - the velocity of a projectile as it leaves the muzzle of a gun
    • peculiar velocity - velocity with respect to the local standard of rest
    • radial velocity - velocity along the line of sight toward or away from the observer
    • c, light speed, speed of light - the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second
    • steerageway - (nautical) the minimum rate of motion needed for a vessel to be maneuvered
    • terminal velocity - the constant maximum velocity reached by a body falling through the atmosphere under the attraction of gravity
    same as: speed

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