fizikis kursi

2
dv
v1
a τ = τ , an = n
dt
R
τ da n erTeulovani veqtorebia, a τ mimarTulia siCqaris gaswvriv
traeqtoriis mxebad, xolo an _ radiusis gaswvriv centrisken.
R_simrudis radiusia (nax. 5). amgvarad, mrudwiruli moZraobisas sruli
aCqareba:
a a +
misi moduli
a
= τ n , an a = τ + n,
2 2
a = aτ
+ an
nax. 5.
16
dv
dt
=
⎛
⎜
⎝
dv
dt
dv
dt
2
⎞
⎟
⎠
2 ⎛ v ⎞
+ ⎜
⎟
⎝ R ⎠
aCqarebis tangencialuri da normaluri mdgenelebis gamoyenebiT
SeiZleba movaxdinoT moZraobis klasificireba:
1) a = 0,
a = 0 _ wrfivi Tanabari moZraobaa,
τ
n
2) a τ = a = const,
a n = 0 _ wrfivi Tanabarcvladi moZraoba da
Δv
v2
− v1
aτ
= a = = , Tu aTvla iwyeba 1 0
Δt
t − t
= t momentidan, maSin t = t
2
1
2
2 da v 2 = v,
xolo v 1 = v0
- sawyisi siCqarea, gveqneba
v − v0
a = ,
t
saidanac v = v0
+ at,
gavlili gza
S =
t t
2
at
( ,
2
∫vdt = ∫ v0
+ at)
dt = v0t
+
0 0