instantaneous velocity

instantaneous velocity
a) the velocity of an object at any given instant (especially that of an accelerating object)
b) the limit of the change in position per unit time as the unit of time approaches zero; expressed mathematically as

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  • instantaneous velocity — akimirkinis greitis statusas T sritis Standartizacija ir metrologija apibrėžtis Greitis tam tikrą akimirką. atitikmenys: angl. instantaneous speed; instantaneous velocity vok. augenblickliche Geschwindigkeit, f; Momentangeschwindigkeit, f rus.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • instantaneous velocity — akimirkinis greitis statusas T sritis fizika atitikmenys: angl. instantaneous velocity vok. augenblickliche Geschwindigkeit, f; Momentangeschwindigkeit, f rus. мгновенная скорость, f pranc. vitesse instantanée, f …   Fizikos terminų žodynas

  • velocity — /veuh los i tee/, n., pl. velocities. 1. rapidity of motion or operation; swiftness; speed: a high wind velocity. 2. Mech. the time rate of change of position of a body in a specified direction. 3. the rate of speed with which something happens;… …   Universalium

  • instantaneous — adjective Etymology: Medieval Latin instantaneus, from instant , instans, noun Date: 1651 1. done, occurring, or acting without any perceptible duration of time < death was instantaneous > 2. done without any delay being purposely introduced …   New Collegiate Dictionary

  • instantaneous speed — akimirkinis greitis statusas T sritis Standartizacija ir metrologija apibrėžtis Greitis tam tikrą akimirką. atitikmenys: angl. instantaneous speed; instantaneous velocity vok. augenblickliche Geschwindigkeit, f; Momentangeschwindigkeit, f rus.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • velocity microphone — a microphone in which the output varies according to the instantaneous velocity of the air molecules in the incident sound waves. * * * …   Universalium

  • velocity microphone — noun : a microphone (as the ribbon microphone) whose very light and flexible diaphragm follows almost without phase lag the air movements in the sound waves that actuate it * * * a microphone in which the output varies according to the… …   Useful english dictionary

  • Instantaneous — In stan*ta ne*ous, a. [Cf. F. instantan[ e].] [1913 Webster] 1. Done or occurring in an instant, or without any perceptible duration of time; as, the passage of electricity appears to be instantaneous. [1913 Webster] His reason saw With… …   The Collaborative International Dictionary of English

  • Instantaneous axis of rotation — Instantaneous In stan*ta ne*ous, a. [Cf. F. instantan[ e].] [1913 Webster] 1. Done or occurring in an instant, or without any perceptible duration of time; as, the passage of electricity appears to be instantaneous. [1913 Webster] His reason saw… …   The Collaborative International Dictionary of English

  • Instantaneous center of rotation — Instantaneous In stan*ta ne*ous, a. [Cf. F. instantan[ e].] [1913 Webster] 1. Done or occurring in an instant, or without any perceptible duration of time; as, the passage of electricity appears to be instantaneous. [1913 Webster] His reason saw… …   The Collaborative International Dictionary of English

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