For test Miscarea mecanica a IXa, p2 Flashcards

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1
Q

Acceleratia medi

A
  • marimea fizica vectoriala egala cu variatia vectorului viteza in raport cu t; are directia si sensul vitezei;
  • am = v/t
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2
Q

Acceleratia instantanee

A
  • limita catre care tinde acceleratia medie cand t tinde la 0.
  • a = lim t-0 v/t, dv/dt
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3
Q

acceleratia are doua componente

A
  1. tangentiala - datorata variatiei modulului vitezei
  2. normala - datorata variatiei directiei vitezei

a = an +at
a = rad din an2 +at2

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4
Q

a se masoara in

A

m/s2

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