Page 75 - index

F ¦ Fi . (44)

Ʉԛɲɬɟɪɞɿԙ ԥɫɟɪ ɟɬɭ ɧԛɤɬɟɥɟɪɿ ɬԝɪɚԕɬɵ ɬԛɪɞɟ ɛɟɥɝɿɥɟɧɝɟɧ ɛɨɥɫɚ, ɨɧɞɚ ɬɟԙ
ԥɫɟɪ ɟɬɭ ɤԛɲɿ ɛɟɥɝɿɥɿ ɛɿɪ ɧԛɤɬɟ ɚɪԕɵɥɵ, ɩɚɪɚɥɥɟɥɶ ɤΟɲɬɟɪɞɿΝ ɰɟɧɬɪɿ ɞɟɩ
ɚɬɚɥɚɬɵɧ ɋ ɧԛɤɬɟɫɿ ɚɪԕɵɥɵ ԧɬɟɞɿ. Ȼԝɥ ɧԛɤɬɟɧɿԙ ɟɪɟɤɲɟɥɿɤɬɟɪɿ: ɟɝɟɪ

ɤԛɲɬɟɪɞɿ ԧɡɞɟɪɿɧɿԙ ԥɫɟɪ ɟɬɭ ɧԛɤɬɟɥɟɪɿ ɚɪԕɵɥɵ ɛɿɪ ɛɚԑɵɬԕɚ ɠԥɧɟ ɛԥɪɿɧ ɛɿɪɞɟɣ
ɛԝɪɵɲԕɚ ɛԝɪɫɚ, ɨɧɞɚ ɬɟԙ ԥɫɟɪ ɟɬɭ ɤԛɲɿɞɟ ɫɨɥ ɛɚԑɵɬԕɚ ɠԥɧɟ ɫɨɧɞɚɣ ɛԝɪɵɲԕɚ
ɛԝɪɵɥɚɞɵ.

71-ɫɭɪɟɬ
Ԕɨɪɵɬɚ ɚɣɬԕɚɧɞɚ, ɟɝɟɪ ɩɚɪɚɥɥɟɥɶ ɤΟɲɬɟɪɞɿ, ΫɡɞɟɪɿɧɿΝ Ωɫɟɪ ɟɬɭ ɧΟɤɬɟɥɟɪɿ
ɚɪΙɵɥɵ ɛΩɪɿɧ ɛɿɪɞɟɣ ɛΡɪɵɲΙɚ ɠΩɧɟ ɛΩɪɿɧ ɛɿɪ ɠɚΙΙɚ ɛΡɪɫɚ, ɨɧɞɚ, ɩɚɪɚɥɥɟɥɶ
ɤΟɲɬɟɪɞɿΝ ɬɟΝ Ωɫɟɪ ɟɬɭɲɿ ɤΟɲɿɧɿΝ Ωɫɟɪ ɟɬɭ ɫɵɡɵΕɵ ɞɚ, ΫɡɿɧɿΝ ɛɨɣɵɧɞɚ
ɠɚɬΙɚɧ ɛɟɥɝɿɥɿ ɛɿɪ ɧΟɤɬɟ ɚɪΙɵɥɵ ɚɣɧɚɥɚɞɵ. Ψɫɟɪ ɟɬɭ ɫɵɡɵΕɵɧɞɚ ɠɚɬΙɚɧ
ɨɫɵ ɧΟɤɬɟ ɩɚɪɚɥɥɟɥɶ ɤΟɲɬɟɪɞɿΝ ɰɟɧɬɪɿ ɞɟɩ ɚɬɚɥɚɞɵ.
ȼɚɪɢɧɶɨɧ ɬɟɨɪɟɦɚɫɵɧ ԕɨɥɞɚɧɵɩ, ɩɚɪɚɥɥɟɥɶ ɤԛɲɬɟɪ ɰɟɧɬɪɿɧɿԙ
ɤɨɨɪɞɢɧɚɬɬɚɪɵɧɵԙ ɮɨɪɦɭɥɚɥɚɪɵɧ ɚɥɭԑɚ ɛɨɥɚɞɵ. Ɉɥ ԛɲɿɧ, ɬɟԙ ԥɫɟɪ ɟɬɭɲɿ
ɤԛɲɬɿԙ Ox ɠԥɧɟ Oy ɨɫɶɬɟɪɿɧɟ ԕɚɬɵɫɬɵ ɦɨɦɟɧɬɬɟɪɿɧɿԙ ԧɪɧɟɤɬɟɪɿɧ ɠɚɡɚɦɵɡ,

ɨɥɚɪ:

¦ ¦M x (F ) M y (Fi ) .
M x (Fi ) ɠԥɧɟ M y (F )

71-ɫɭɪɟɬɬɟɧ ɤԧɪɿɧɿɩ ɬԝɪԑɚɧɞɚɣ: Ox ɨɫɿ ɚɪԕɵɥɵ ɦɨɦɟɧɬ ɚɥԑɚɧɞɚ
ɤԛɲɬɟɪɞɿԙ ɢɿɧɞɟɪɿ – ɫԥɣɤɟɫ ɧԛɤɬɟɥɟɪɞɿԙ ɨɪɞɢɧɚɬɚɥɚɪɵ, ɚɥ Oy ɨɫɿ ɚɪԕɵɥɵ

ɦɨɦɟɧɬ ɚɥԑɚɧɞɚ ɤԛɲɬɟɪɞɿԙ ɢɿɧɞɟɪɿ – ɫԥɣɤɟɫ ɧԛɤɬɟɥɟɪɞɿԙ ɚɛɫɰɢɫɫɚɥɚɪɵ

Fi ˜ xi , F ˜ yC Fi ˜ yi . Ɉɫɵ ɬɟԙɞɿɤɬɟɪɞɟɧ:
¦ ¦ɚɥɵɧɚɞɵ. ɋɨɧɞɵԕɬɚɧ: F ˜ xC

Fi ˜ xi¦¦ ¦¦xC,yC Fi ˜ yi .
Fi Fi

Ɉɫɵ ɬɟɨɪɟɦɚɧɵ ԕɨɥɞɚɧɵɩ, z ɨɫɿ ԛɲɿɧ ɫԥɣɤɟɫ ɬɟԙɞɿɤɬɿ ɚɥɭԑɚ ɛɨɥɚɞɵ, ɹԑɧɢ

73