maths1.py

Created by elisapuce2005

Created on November 20, 2022

477 Bytes

#repère de Frenet, 

T= tangent à la trajectoire dans le sens du mvt
N=normal à la trajectoire et orienté vers le centre C

OM=x*i=y*i  Om(x/y)

vitesse instantanée, vitesse à une date t1 précise 
vi=Mi-1Mi+1/deltat
Direction: la tangente à la trajectoire en mi
v(t)=(dOM/dt)
v(vx vy )  vx=dx/dt   vy=dy/dt

vecteur vitesse = v * T 
v(vT=v
  vN=0)

vecteur accélération : 
  a=vi+1-v1-1/ti+1-ti-1 
norme de a = llvi+1-v1-1ll/ti+1-ti-1

a=dv/dt*T+v2/R*N

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