, . ?, .
( ) , . , : ) ; ) , .
. .
. , . : ; ; ; ...
. . , . , .
( ) , .
, Dt, , :
= . (4.1)
, (4.1). , 11 , , Dt 0, . , . .
, Dt, , :
= . (4.2)
Dt (4.2) , (4.1). . . .
t n:
= t + n. (4.3)
t . , n . .
, :
12 = 13 + 32. (4.4)
, , 32 . , .
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(4.4):
12 = 13 + 32. (4.5)
= const, x
SX = v0X t + , (4.6)
vX = v0X + aX t, (4.7)
SX = . (4.8)
X x, 0 .
R,
v = w R, (4.9)
an = v2 / R = w2 R. (4.10)
w , Dj , , Dt, :
w = . (4.11)
Dt, Dt (4.1) (4.2).
. .
(4.4) (4.5) , . 3 1 2. , : 1 2 1 3 3 2. . , !
(4.7) (4.6) (4.1), (4.8) (4.6) (4.7). -, .
(4.6) (4.7) . , ( X) ( ). . , (4.8), ().
(4.6) ,
SX = x x0, (4.12)
x0 . . , (4.12) . , .
. . , , .
() (), . (, , .). ( ). . . , . , .
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1 . : ) 1; ) 2 3? : ) v1 v2; ) 3.
) )? , ) )? , , .
. 2 .
:
= 1 2 = 1 + ( 2).
x
AX = A cos a, (4.13)
a , x. , , 3. cos a. , a , , . , , .
, , . (4.13) 3.