Page 235 - index

ȿɝɟɪ ɧԛɤɬɟɧɿԙ ԕɚɧɞɚɣ ɞɚ ɛɿɪ ɛɚɣɥɚɧɵɫɬɚɪɵ ɛɨɥɫɚ (ɟɪɤɿɧ ɟɦɟɫ ɧԛɤɬɟ), ɨɧɞɚ
ɨɥ ɛɚɣɥɚɧɵɫɬɚɪɞɵ ɚɥɵɩ ɬɚɫɬɚԑɚɧɧɚɧ ɤɟɣɿɧ, ɞɟɧɟɝɟ ԥɫɟɪ ɟɬɭɲɿ ɛɚɪɥɵԕ ɤԛɲɬɟɪ
ɛɟɥɫɟɧɞɿ (ɚɤɬɢɜ) ɤԛɲɬɟɪ ɠԥɧɟ ɛɚɣɥɚɧɵɫ ɪɟɚɤɰɢɹɥɚɪɵ ɛɨɥɵɩ ɟɤɿɝɟ ɛԧɥɿɧɟɞɿ.

45-ɫɭɪɟɬ

oo o o
Ȼɟɥɫɟɧɞɿ ɤԛɲɬɟɪɞɿ P1 , P2 , ..., Pn ɚɪԕɵɥɵ, ɚɥ ɨɥɚɪɞɵԙ ɬɟԙ ԥɫɟɪ ɤԛɲɿɧ P

oo o
ɚɪԕɵɥɵ ɛɟɥɝɿɥɟɣɦɿɡ; ɛɚɣɥɚɧɵɫ ɪɟɚɤɰɢɹɥɚɪɵɧ, R1 , R2 ..., Rn ɞɟɩ, ɨɥɚɪɞɵԙ

o

ɬɟԙ ԥɫɟɪ ɤԛɲɿɧ R ɞɟɩ ɛɟɥɝɿɥɟɣɦɿɡ. ɋɨɧɞɚ, ɟɪɤɿɧ ɟɦɟɫ ɞɟɧɟ ԛɲɿɧ

ɞɢɧɚɦɢɤɚɧɵԙ ɧɟɝɿɡɝɿ ɬɟԙɞɟɭɿ

o oo oo o
m ɚ P R Ÿ P R m ɚ 0

ɬԛɪɞɟ ɠɚɡɵɥɚɞɵ.

oo

Ȼԝɥ ɬɟԙɞɟɭɞɟɝɿ Ɏ m w ɧԛɤɬɟɧɿԙ ɢɧɟɪɰɢɹ ɤԛɲɿ ɛɨɥԑɚɧɞɵԕɬɚɧ:

oo (140)

P RɎ 0 .

oo

Ⱥɥɵɧԑɚɧ 140-ɮɨɪɦɭɥɚɞɚΕɵ P ɠԥɧɟ R ɤԛɲɬɟɪɿ ԕɚɪɚɫɬɵɪɵɥɵɩ ɨɬɵɪԑɚɧ

o

ɧԛɤɬɟɝɟ ɬԛɫɿɪɿɥɝɟɧ ɤԛɲɬɟɪ, ɚɥ Ɏ ɤԛɲɿ ɲɵɧɞɵԑɵɧɞɚ, ɧԛɤɬɟɝɟ ɬԛɫɿɪɿɥɦɟɝɟɧ.
ɋɨɧɞɵԕɬɚɧ ɛԝɥ ɮɨɪɦɭɥɚ ɤԧɡɝɟ ԑɚɧɚ (ɮɨɪɦɚɥɞɵ ɬԛɪɞɟ) ɤɟɥɟɫɿ ɬԝɠɵɪɵɦԑɚ
ɧɟɝɿɡ ɛɨɥɚ ɚɥɚɞɵ: ɧΟɤɬɟ ɞɢɧɚɦɢɤɚɫɵɧɵΝ ɬɟΝɞɟɭɿɧ ɬɟɩɟ-ɬɟΝɞɿɤ ɬɟΝɞɟɭɿ
ɬΟɪɿɧɞɟ ɠɚɡɭ Οɲɿɧ, ɛɟɥɫɟɧɞɿ ɤΟɲɬɟɪ ɦɟɧ ɬɿɪɟɤ ɪɟɚɤɰɢɹɥɚɪɵɧɚ ɨɫɵ
ɧΟɤɬɟɧɿΝ ɢɧɟɪɰɢɹ ɤΟɲɿɧ Ιɨɫɫɚ ɠɟɬɤɿɥɿɤɬɿ.

Ɉɫɵ ɬԝɠɵɪɵɦ – ɦɚɬɟɪɢɹɥɵ ɧԛɤɬɟ ԛɲɿɧ Ⱦɚɥɚɦɛɟɪ ԕɚԑɢɞɚɫɵɧɵԙ ɧɟɦɟɫɟ
ɤɢɧɟɬɨɫɬɚɬɢɤɚ ɬԥɫɿɥɿɧɿԙ ɧɟɝɿɡɿɧ ԕɚɥɚɣɞɵ.

Ʉɟɥɬɿɪɿɥɝɟɧ 140-ɮɨɪɦɭɥɚ ɦɚɬɟɪɢɹɥɵ ɧΟɤɬɟ Οɲɿɧ ɤɢɧɟɬɨɫɬɚɬɢɤɚɧɵΝ
ɬɟΝɞɟɭɿ ɛɨɥɵɩ ɬɚɛɵɥɚɞɵ. Ȼԝɥ ɬɟԙɞɟɭɞɿ ɟɤɿ ɫɤɚɥɹɪ ɬԛɪɞɟ ɠɚɡɭԑɚ ɛɨɥɚɞɵ:

ɚ) ɤɨɨɪɞɢɧɚɬɚ ɨɫɶɬɟɪɿɧɞɟɝɿ ( Ox , Oy , Oz ) ɩɪɨɟɤɰɢɹɥɚɪ ɬԛɪɿɧɞɟ:

Px Rx Ɏx 0,

Py Ry Ɏy 0, (141)

Pz Rz Ɏz 0.
ɚ) ɬɚɛɢԑɢ ɨɫɶɬɟɪɞɟɝɿ ɩɪɨɟɤɰɢɹɥɚɪ ɬԛɪɿɧɞɟ:

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