, , , .
, , , .
- , .
, , , .
- , (, )
(S)- ( ) D s = D s(t).
- . D r = r r 0,
- , .
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:
Vx =; Vy =; Vz =
V = | V | =
2 - , .
t t + D t , Dv
, = Dt0, ..
a = lim = = (1.4)
: , ,
.
a , (. 1.2) t an. (a t),
. . , .
() (an). n = 0. . 1.2.
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V2 A (.1.3) , V1 , ACD ABC. DSAB, R - . :
; ,
, (1.7)
(1.7/)
:
1) , n = 0 ;
2) , n = 0 .
t 1=0, v 1 =v 0, , t 2 =t v 2 =v, ,
t, , , ,
3) , n = 0 ;
4) , n = const. , . an=v 2 /r , . , ;
5) , ;
6) , ;
7) , .