. .
.
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, .
(, ..). , , , ..
2. . . .
, .
.
, .
.
:
1) , , .
υ =S/t
2) , - .
υ = lim ∆r/∆t, ∆t→0 υ=r
(, ).
1) , , .
υ =S/t
, , .
υ =∆S/∆t
t1 t2 s t = t2 - t1
2) , - .
υ = lim ∆r/∆t, ∆t→0 υ=r
(, , ).
, . , .
.
.
a= lim ∆υ/∆t=dυ/dt= υ ∆t→0
a=d/dt*(dr/dt)=d2r/dt2=dr/dt=r
.
aτ=(d|υ|/dt)τ
- .
an=a-aτ=(υ2/R)*n, n- , τ, .(n, τ)=0, τ-
|
|
R- , .
.
ω, , dφ (ω dφ ).
ω=lim ∆φ/∆t=dφ /dt ∆t→0
, . ∆φ,
, .
ε, .
ε=lim ∆ω/∆t=dω/dt ∆t→0
, . e >0, , . e < 0, .