>> . 10-11 .

5.

 


5.5.

, , .

. . - . , , .

.

, (. 5.10). MN l NC MD, CD. MN α .

, , (. 4.9):

MN. N *:

    * . (5.5.1) , . (. 4.9).

MN q :

l, .

, . , MNCD i , . , MN .

, (4.3.3). , MNCD :

= BS cos (90 - α) = BS sin α,

90 - α , a S MNCD. , (t = 0) MN NC CD (. . 5.10), S :

S = l(NC - υt).

Δt ΔS = -lυΔt. , . Δ = -BlυΔt sin α. ,

[. (5.5.2)].

MNCD , , , , , . . MN CD (5.5.1), N D. .

, , .

 

 

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