Page 77 - index

ɞɟɩ ɛɟɥɝɿɥɟɣɿɤ. Ɉɫɵ ɲɚɦɚɥɚɪɞɵ 45-ɮɨɪɦɭɥɚɥɚɪΕɚ ԕɨɣɵɩ, ɞɟɧɟɧɿԙ ɫɚɥɦɚԕ

ɰɟɧɬɪɿɧɿԙ ɮɨɪɦɭɥɚɥɚɪɵɧ ɚɥɚɦɵɡ

¦¦ ¦¦xC Pi ˜ xi , yC Pi ˜ yi , zC ¦ Pi ˜ zi . (46ɚ)
Pi Pi ¦ Pi

Ⱦɟɧɟɧɿԙ ɫɚɥɦɚԕ ɰɟɧɬɪɿɧɿԙ ɪɚɞɢɭɫ-ɜɟɤɬɨɪɵ:

¦¦rC Ɋi ˜ ri . (46ԥ)
Ɋi

Ȼɿɪ ɬɟɤɬɿ ɞɟɧɟɥɟɪɞɿԙ (ɞɟɧɟɧɿԙ ɛɚɪɥɵԕ ɷɥɟɦɟɧɬɬɟɪɿɧɿԙ ɦɟɧɲɿɤɬɿ ɫɚɥɦɚԑɵ
ɛɿɪɞɟɣ) ɫɚɥɦɚԕ ɰɟɧɬɪɿ ɤɨɨɪɞɢɧɚɬɚɥɚɪɵɧɵԙ ɮɨɪɦɭɥɚɥɚɪɵ:

¦¦ ¦¦ ¦¦xC
'Vi ˜ xi , yC 'Vi ˜ yi , zC 'Vi ˜ zi . (47ɚ)
Vi Vi Vi

V – ɞɟɧɟɧɿԙ ɤԧɥɟɦɿ,

'Vi – ɞɟɧɟ ɷɥɟɦɟɧɬɿɧɿԙ ɤԧɥɟɦɿ,
J – ɞɟɧɟɧɿԙ ɦɟɧɲɿɤɬɿ ɫɚɥɦɚԑɵ,

Pi J ˜ 'Vi – ɷɥɟɦɟɧɬɬɿԙ ɫɚɥɦɚԕ ɤԛɲɿ.

Ⱥɥɵɧԑɚɧ 47 ɚ-ɮɨɪɦɭɥɚ ɠɭɵԕ ɮɨɪɦɭɥɚ, ɚɥ ɞԥɥ ɮɨɪɦɭɥɚ ɚɥɭ ԛɲɿɧ, 'Vi
ɲɚɦɚɫɵɧ ɧԧɥɝɟ ԝɦɬɵɥɞɵɪɚ ɨɬɵɪɵɩ, ɮɨɪɦɭɥɚɧɵԙ ɚɥɵɦɵɧɵԙ ɲɟɝɿɧ ɚɥɭ
ɤɟɪɟɤ, ɹԑɧɢ

³ xdV ³ ydV ³ zdV
xC V , yC V , zC V . (47ԥ)

V V V

Ȼɿɪɬɟɤɬɿ ɠԝԕɚ ɩɥɚɫɬɢɧɚ ԛɲɿɧ

¦ ¦xC 'Fi ˜ yi
'Fi ˜ xi , yC F , zC 0. (48ɚ)
F

ɧɟɦɟɫɟ:

³ xdF ³ ydF , zC 0. (48ԥ)
xC F , yC F

F F

Ɉɫɵ ɮɨɪɦɭɥɚɥɚɪɞɵԙ ɚɥɵɦɵɧɞɚԑɵ ɲɚɦɚɥɚɪ ɚɭɞɚɧɧɵԙ ɫɬɚɬɢɤɚɥɵԕ
ɦɨɦɟɧɬɬɟɪɿ ɞɟɩ ɚɬɚɥɚɞɵ, ɹԑɧɢ

Sx ³ ydF , Sy ³ xdF .
FF

ɋɨɧɞɵԕɬɚɧ:

xC Sy , yC Sx . (48ɛ)
F F

Ȼɿɪɬɟɤɬɿ ɫɵɪɵԕ (ɤɟɣɞɟ «ɫɵɡɵԕ» ɞɟɩ ɬɟ ɚɬɚɣɞɵ) ԛɲɿɧ

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