c8.py

Created by anaali
Created on January 14, 2024
608 Bytes
# Type your text here
ax=(q/m)*Ex
ay=0
a et F mm direction mm sens
E du + vers le - 
v0x= vo cos alpha
v0y= vo sin alpha
 
Em=Ec+Epp
Ec= 1/2 *m*v**2
Epp=m*g*h
W(AB)F=F*AP=F*AB*cos(alpha)

si 0=<alpha<90, w>0 => moteur
si 90<alpha=<180,w<0 =>resistant
si alpha = 90 w=0 => nul

th energie cinétique: 
  delta EC =Ecb-Eca=sigma Wp
  
Poids:
  Wp(J)=m*g*(alt dep-alt arrivé)
Force electrique:
  Wab(Fel)=q*Uab
Force de frottement:
  f a l'opp du mvt, mm direct,
  sens opp
  W(AB)f=f*AB*cos(alpha)
        =f*AB*cos(180)
        =-fAB
  Si force de frottement:
    EM décroissant
    delta EM=Wf