TD8_9_0611_(Dimitris..

x(t) = Acos(ωt +φ)t= 0
φ
x06= 0 t= 0
t= 0
A T
t= 0 x=A
x=−A
n
m
A
f
vmax
amax
k

k
m
k0k0
f vmax amax
mAmB
A B
kAkB
F=−bv
b T
b t
x=Ae−b
2mtcos(ωt +φ)A
v
t= 0 x(0) = x0v(0) = 0
A=x0ω0
ωω0
φ

acos x+bsin x=Rcos(x−θ)R=√a2+b2tan θ=b/a
v=V0cos(ωt +θ1)V0θ1
tn
xn=x(tn)
t1/2
ρ H R
L
ρeau
L0
l

m= 2 kg k= 200 N/m
F= 10 cos 10t
v=√3 m/sx= 0,1 m x=
Acos(ωt +φ), φ =−π/2
ω
A m
b
x=Acos(ωt +φ)Fext cos(ωt)−kx −bdx
dt =md2x dt2
A φ
φ= 30◦
k1= 60 N/mk2= 140 N/m
C1m1= 2 kg
C1t0= 0
C1
C1
C1C1
C2m2= 6 kg C2
C1
ω2
C2ω2
C2k k

t=t0
C1C2
C2C1C2
C1
g= 10 m/s2
k m ~
F=−b~v
x=−0,3 m
v= 1,6 m/s
Fext = 0,5 N a= 4,8 m/s2
ω
b m = 1 kg k= 25 N/m