.


:




:

































 

 

 

 


-




 

, , - . .

, K1 K2. m ( ) . m1 . m2 , . K2, , m2 , , .

 

. 1. , .

K1 , .

, K0. S :

F = nK0X = SXK0/S0 = SXK = KSX

n S; S0 , ; X ; K = K0/S0 ( ). , m

m M :

, ,

( t = 0, dX/dt = v) :

X = (v/ ) sin( t).

F ( )

Fmax = KSXmax = KSv/ ,

T = /. :

 

 

. (1) (2) , . . (1)

C 0 ( ) 1, 1. , M>>m ( , - ) . , ( ). C , (1a). , , , C = 2/3, C = 8/9. , , , . .

(1) (2), :

(3)

:

P = 2FmaxT/ (4)

(1) (2), :

Fmax = KSTv/ (5)

(1) , , , .

M>5m, 5m 10% ( ). 20% 10%. 20% . 5070%. 2530%. 2 .

(2), , KS K.

(5), , , . (3), ( ), .

( 1, 2) ( 3, 4):

. 2. .

, . :

 

. 3. .

. 4. .

:

1. t . t .

2. t 10 . . (m+m1). t .

3. , 80% . t ( m m1 ). , .

4. , :

m = 2 , S = 4045 2 = 2t = 0,012 (t = 6 ) K 3000 /(22).

5. , . , (3),

, , v = 5,5 /, v = 12 /.

6. 1015%. : 50% 100% . , .

- , , ( ). . , , , .

7. , - K1 , , . , , , . , .

8. , , . 40 28 . 32 (50% ).

9. , , . . ( ), ( ).

10. , ( ) . , , .

, , . 4060%.

 





:


: 2015-05-07; !; : 874 |


:

:

, , 1:10
==> ...

2344 - | 2232 -


© 2015-2024 lektsii.org - -

: 0.01 .