.
, ,
- . : , , , . (, ), (, ). , , ( ) , , .
, . , .
, ά , Fs (Fs = F cosά), :
A = Fs s = Fs cosά. (3.1)
, , (3.1) . , , , , - .
d = = F cosά ds = F s ds,
ά - ; ds = | | ; F s - (. 3.1).
1 2 .
A = . (3.2)
F s s 1-2. (. 2), . , , , F = const ά = const,
= ,
s - (. (3.1)).
(3.1) , ά < π/2 , s (. . 3.1). ά > π/2, . ά = π/2 ( ) .
- (): 1 - , 1 1 (1 = 1 ͷ).
, :
N = (3.4)
Δ t , N, ,
N = , (3.5)
|
|
. . , ; N - .
- (): 1 - , 1 1 (1 = 1 /).