pe.py

Created by cghi72

Created on February 03, 2022

533 Bytes

L'EC d'1 système de masse m se déplaçant à la vitesse
v dans le référebciel d'étude :
  1/2m*V**2
  
travail d'une force constante F sur déplacement 
ab produit scalaire 
Wab(f):f*ab:f*ab*cos x

moteur<90 sup 0 favor dep
nul : 90 aucun effet dep
résistant> 90 s'oppose dep

f conservative : travail de A à B 
indépendant chemin suivit 

nn conserv: dépendant chemin 

Epp dénivelé 
 delta Epab:epb -epa :-Wab(f)
 
ep:mgz

Em:ep+ec

delta em:o force conserva 
delta em : somme force W force nn conseva

W Uab*Q

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