: . .
- 䳺 F, , oci , , (. 15.1.). . , 䳿 , F, =F.
(15.1.)
- ;
; - , , - .
, , , (15.1) . , .
(15.2)
, . , . - .
1. .
2. .
3. , .
4. .
5. 0.
6. ϳ .
7. .
8. . .
15
__________________________________________
:
) h= _______; b= _____________________________________
= bh= _________________________________
____________ ___________________
____________ _______________
. 15.1. |
_____________ __________________
________________
e=yx= _________
____ _
. _________________________________________
___________
_________
__________
________________________ _____________________________
______________________________________________
|
|
l0, |
F | C | ||||||
Δ | Δ | ||||||
_______________________; ______________________
_______________________; ____________________
____________________________________________; ____________________________________________.
:
___________________;
____________________.
ij :
) )