Механика УМК
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A B BYY |
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(2.19) |
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m1 m2 ... mN |
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i 1 |
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(2.13) , (2.19), |
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mi m, |
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(2.20) |
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(2.21) |
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P m c . |
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(2.21) ,
( ).
(2.21) (2.15),
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(2.23) |
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(2.4):
, , . Fi
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A12 F S FS S FSF . |
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FS
(
(2.28)). -
, . FS(S). -
( . 2.3),
S, , — FS —
F -
dS ( dS
). . 2.3 1 2 S
1 2 , . 2.2, .
12 ( . 2.3) S1, S2,… Si ,…, SN -
Ai , Si . ,
F Si , -
FS, Fsi . , ,
Fsi Si FS (S) .
,
FS(S) . |
S |
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F ( ) |
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Ai Fsi Si . |
(2.29) |
. 2.3 |
. 2.4 |
, - |
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2.3. 12 ( - |
) 1 2
(2.29):
N |
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A12 Ai Fsi Si . |
(2.30) |
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, (2.30) , -
Si 1 — 2.
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74
AB
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80