velocity

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determining the course of an aircraft

Velocities of the same body in two frames of reference (see text).

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velocity: Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Last Updated: Apr 16, 2025

Photos

determining the course of an aircraft

Velocities of the same body in two frames of reference (see text).

See All Images →

Topics

speed instantaneous velocity phase velocity generalized velocity radial velocity average velocity tangential velocity group velocity wave velocity angular velocity radiation radioactivity relativity cluster isomerism phase elasticity entropy polarity heat

Key People

Antoine de Chézy

French engineer

Quiz

barometer. Antique Barometer with readout. Technology measurement, mathematics, measure atmospheric pressure

Fun Facts of Measurement & Math

Demystified

Highway Night Traffic Portland, drive, driving, car, automobile.

What's the Difference Between Speed and Velocity?