mru.py

Created by maxime-rigotti

Created on October 17, 2022

747 Bytes


v=vitesse  a=acceleration
t=trajectoire
v=d/t  t=v/d
1km/h=3.6m/s

 mouvement rectligne
la position du solide m1 a linstant t1
est definie par la distance x1 mesuree
a partir du point 0 pris comme origine

 vitesse moy
Vmoy=(X2-X1)/(t2-t1) en m/s

 vitesse instantanee
Vm=deltaX/deltaT en m/s

 acceleration
amoy=(V2-V1)/(T2-T1) en m/s**2

 equation de mouvement
a=0 V0=constante X=V0*t+X0
X0=deplacmt initial a T=0
Vo=vitsse init 
X=deplacmt a linst

 exemple
X1=60x6=360km
X1=V1*t=60t
X2=V2*(t-2)=90(t-2)=90t-180
t=X1-X2
60t=90-180
-30t=-180
t=180/30=6h

40t=20t+50
20t=50
t=50/20=2.5h

A=a0  V=at+V0  X=1/2at**2+V0t*Xa
A=V0=0m/s  X0=0m  X=1/2at**2
a t=19s X=1000m
A=2x/t**2=2*100/19**2=5.5m/s**2

V=axt  V=5.5*19=104.5m/s











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