In physics, jounce or snap is the fourth derivative of the position vector with respect to time or the rate of change of the jerk with respect to time. Equivalently, it is second derivative of acceleration or the third derivative of velocity.Jounce is defined by any of the following equivalent expressions: The following equations are used for constant jounce: where is constant jounce, is initial jerk, is final jerk, is initial acceleration, is final acceleration, is initial velocity, is final velocity, is initial position, is final position, is time between initial and final states. The notation

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  • In physics, jounce or snap is the fourth derivative of the position vector with respect to time or the rate of change of the jerk with respect to time. Equivalently, it is second derivative of acceleration or the third derivative of velocity.Jounce is defined by any of the following equivalent expressions: The following equations are used for constant jounce: where is constant jounce, is initial jerk, is final jerk, is initial acceleration, is final acceleration, is initial velocity, is final velocity, is initial position, is final position, is time between initial and final states. The notation (used by Visser) is not to be confused with the displacement vector commonly denoted similarly. Currently, there are no well accepted designations for the derivatives of jounce. The fourth, fifth and sixth derivatives of position as a function of time are "sometimes somewhat facetiously" referred to as snap, crackle and pop respectively. Because higher-order derivatives are not commonly useful, there has been no consensus among physicists on the proper names for derivatives above jounce. The dimensions of jounce are distance per fourth power of time. In SI units, this is "metres per quartic second", m/s4, m · s−4, or 100 Gal per second squared in CGS units. This pattern continues for higher-order derivatives, with the 5th being m/s5. (en)
  • Le snap et le jounce, en physique, sont des noms donnés aux dérivées temporelles quatrièmes du vecteur position, la première étant la vitesse, la seconde l'accélération et la troisième l'à-coup (ou jerk, jolt). Le snap ou le jounce sont donc la dérivée de l'à-coup. où : est le jerk, est l'accélération, est la vitesse, est la position, est le temps. Ces termes (snap et jounce) ne sont pas officiels, étant donnée leur très rare utilisation. Cette grandeur n'a pas de sens physique particulier. On s'y intéresse principalement pour générer des lois de mouvement sans secousse, permettant de limiter les vibrations, donc d'avoir une meilleure précision de mouvement et moins d'usure du système. (fr)
  • Si definisce sbalzo, indicato anche in ambito anglosassone con s per snap o più usualmente con jounce, la derivata dello strappo rispetto al tempo ovvero la derivata di quarto ordine del vettore posizione rispetto al tempo. La legge oraria per il moto con sbalzo costante (posto ) è: Non ci sono ancora nomine bene accettate per le derivate dello sbalzo. Le derivate di quinto e sesto ordine dello spazio in funzione del tempo vengono talvolta chiamate crepitio o "Crackle", e "Pop", comunque questi termini non hanno guadagnato una comune accettazione. (it)
  • Udar jest miarą zmiany zrywu w czasie. Dany jest następującym wzorem: w którym oznacza zryw, – przyspieszenie, – prędkość, – położenie, – czas. Jednostką udaru jest m/s4. (pl)
  • 其中: 是加加速度, 是加速度, 是速度, 是位移, 是时间。 (zh)
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  • Si definisce sbalzo, indicato anche in ambito anglosassone con s per snap o più usualmente con jounce, la derivata dello strappo rispetto al tempo ovvero la derivata di quarto ordine del vettore posizione rispetto al tempo. La legge oraria per il moto con sbalzo costante (posto ) è: Non ci sono ancora nomine bene accettate per le derivate dello sbalzo. Le derivate di quinto e sesto ordine dello spazio in funzione del tempo vengono talvolta chiamate crepitio o "Crackle", e "Pop", comunque questi termini non hanno guadagnato una comune accettazione. (it)
  • Udar jest miarą zmiany zrywu w czasie. Dany jest następującym wzorem: w którym oznacza zryw, – przyspieszenie, – prędkość, – położenie, – czas. Jednostką udaru jest m/s4. (pl)
  • 其中: 是加加速度, 是加速度, 是速度, 是位移, 是时间。 (zh)
  • In physics, jounce or snap is the fourth derivative of the position vector with respect to time or the rate of change of the jerk with respect to time. Equivalently, it is second derivative of acceleration or the third derivative of velocity.Jounce is defined by any of the following equivalent expressions: The following equations are used for constant jounce: where is constant jounce, is initial jerk, is final jerk, is initial acceleration, is final acceleration, is initial velocity, is final velocity, is initial position, is final position, is time between initial and final states. The notation (en)
  • Le snap et le jounce, en physique, sont des noms donnés aux dérivées temporelles quatrièmes du vecteur position, la première étant la vitesse, la seconde l'accélération et la troisième l'à-coup (ou jerk, jolt). Le snap ou le jounce sont donc la dérivée de l'à-coup. où : est le jerk, est l'accélération, est la vitesse, est la position, est le temps. Ces termes (snap et jounce) ne sont pas officiels, étant donnée leur très rare utilisation. (fr)
rdfs:label
  • Jounce (en)
  • Snap (physique) (fr)
  • Sbalzo (meccanica) (it)
  • Udar (fizyka) (pl)
  • 加加加速度 (zh)
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