13
˲ Ҳ ֲί
.
㳺 .
' , , () (). .
. () ' , 13.2: "+" , "" .
, . .
, , . ( ). .
13.2
13.1.
V (/) :
(13.1)
g , 9,81 /2;
h , ..;
, 1,29 /3.
, ᒺ W (3/), , :
(13.2)
F , 2;
V , /.
, 1:
(13.3)
V ᒺ , 3.
( 3÷8 1) .
13.2
h, .. | F, 2 | ᒺ V, 3 | - | ||
V, / | ᒺ W, 3/ | ||||
17