= ()+ () (4)
.
(4). .
()= , ()=
:
= +
= -
=( - )
,
- =
= = () (5)
, .
= -
= (- )= = () (6)
.
- . , - . : , , ..
, .
. , .
:
= F 2 sin ( , )= F 2 d
= F 2 = F 1
:
, .
.
= ,
= ()+ ()
= () (7)
= ()
.
.
, ,
.. , , .
.
.
.
() , , . . , , .
.
= mO ()+ mO (),
= F 1 d = F 2 d
, .
:
, , , .
|
|
, . , ( ).
, .
1.
.