Uyini ukusheshisa centripetal?

Cabanga iphuzu kwi indiza Ukudidiyela. imisebe ezimbili okuvela ke, yakha i-engela. Inani layo ingachazwa njenge-radians noma degrees. Manje ukuqhela iphuzu isikhungo sithola umbuthano ngokwengqondo. Isilinganiso ye-engeli, obonakaliswe radians, Kulezo zimo uyisihlobo nezibalo arc obuphelele L, imishayo amabili ngezintambo ezinqamula ukubaluleka ibanga phakathi iphuzu isikhungo kanye umugqa mbuthano (R), i.e .:

Fi = L / R

Uma manje sethula uhlelo impahla echazwe, singasebenza hhayi kuphela nomqondo engela kanye engaba, kodwa futhi ukusheshisa centripetal, ukujikeleza, njll Iningi lazo ukuchaza ukuziphatha iphuzu kwi selilonke ligijima. By the way, idrayivu okuqhubekayo kungabuye emelelwa iqoqo imibuthano, umehluko ukuthi ibanga kuphela kusukela maphakathi.

Omunye izici uhlelo ujikelezisa ezinjalo - inkathi ukwelashwa. Ikhombisa ukubaluleka isikhathi lapho i iphuzu kasikhombisa obungazungeza ukubuya kwindawo kokuqala noma, okuyilona elisebenzayo futhi kuyiqiniso, bayophendukela 360. Ngesivinini njalo ujikeleza ezenziwe afanayo T = (2 * 3.1416) / UG (ngemuva kwalokhu UG - engela).

ijubane ukujikeleza kubonisa isibalo rotations umnyuziki wawenzela 1 yesibili. Ngesivinini njalo v = sithola 1 / T.

I velocity emincane incike isikhathi kanye engela okuthiwa ujikeleza. Okusho ukuthi, uma sithatha ngokuthi umsuka ongumashiqela iphuzu A kwi mbuthano ke leli phuzu ngeke bayeke A1 esikhathini t lapho uhlelo phendula, azakhele igebe eliphakathi radii ka-A1 kanye nendawo isikhungo. Ukwazi isikhathi engela, kungenzeka ukubala Isivinini emincane.

Futhi isikhathi embuthanweni, ukunyakaza kanye nesivinini, lapho-ke futhi ukusheshisa centripetal. Ingenye yezingxenye echaza ukuhamba iphuzu impahla esimweni ngokunyakaza curvilinear. Amagama athi "okuvamile" futhi "ukusheshisa centripetal" ayafana yini. Umehluko wukuthi yesibili isetshenziselwa ukuchaza ukuhamba mbuthano, lapho vector ukusheshisa kuqondiswe maphakathi ohlelweni. Ngakho-ke njalo kunesidingo ukuze wazi kahle indlela umzimba ihamba (iphuzu) nokusheshisa centripetal. Ukuchaza kanje lokhu: kuba izinga soshintsho Isivinini Vector iqondiswa perpendicular Vector isiqondiso the velocity leso futhi sishintsha orientation lakamuva. I-encyclopedia ithi ucwaningo mayelana nodaba abathintekayo Huygens. Centripetal ukusheshisa ifomula, ehlongozwayo ngu kuye, libukeka:

ACS = (v * v) / r,

ukuphi - engaba ugobile indlela siwela; v - ijubane lokuya.

Ifomula esetshenziswa ukubala ukusheshisa centripetal, namanje kubangela impikiswano eshubile phakathi abathanda. Ngokwesibonelo, usanda kumemezela ocatshangelwayo ezithakazelisayo.

Huygens, ucabangela uhlelo olusekelwe yokuthi umzimba ehamba phezu umbuthano engaba R nge v isivinini, kulinganiswa ngesikhathi A. yokuqalisa Kusukela inertia we-vector iqondiswa eduze tangent embuthanweni, trajectory eyatholakala ngesimo iqondile line AD. Nokho, amandla centripetal kugcina umzimba phezu circle iphoyinti C. Uma thina isho maphakathi G bese ubamba AB umugqa, BO (BS Imininingwane CO), kanye inkampani okuhlangene isitokwe, kuvela unxantathu. Ngokuhambisana nomthetho we-Pythagoras:

OA kuyinto CO;

AB = t * v;

BS = (a * (t * t)) / 2, lapho - ukushesha; t - isikhathi (a * t * t - lena isivinini).

Uma thina manje zisebenzisa i-formula kaPythagoras ke:

U-R2 + t2 + v2 =-R2 + (a t2 * * 2 * R) / 2+ (a t2 * / 2) 2 lapho R - engaba, futhi incwadi i-digital lokubhala ngaphandle uphawu - degree.

Huygens wavuma ukuthi, kusukela ngesikhathi t incane, ngeke usicabangele lapho izibalo. Kugucula ifomula ngenhla, ukuza ACS = (v * v) / r yaziwa.

Nokho, njengoba isikhathi kuthathwe esigcawini, kukhona inqubekela phambili yolwazi: t emikhulu, ayanda ukunemba. Ngokwesibonelo, 0.9 washonaphi cishe u-20% ukubaluleka kokugcina.

Umqondo ukusheshisa centripetal Kubalulekile yesayensi yanamuhla, kodwa, kusobala, kusemasisha kakhulu ukuba abuqede le nkinga.