Akuzona zonke izinto esihlangana nazo ekuphileni kwansuku zonke ezihlala ziphumule. Into ingase iphumule ekuqaleni, kodwa uma ishukunyiswa, ingashukuma. Umbuzo uwukuthi ingabe ibuyela endaweni yayo yokuqala noma cha ngemva kokunyakaza. Lokhu kuncike ekushukumeni. izinhlobo zokulinganisela izinto okwesithathu.
Uma into ephumule ihlangabezana nokuphazamiseka (kukhona amandla avelayo noma umzuzu wamandla ophumelayo osebenza entweni) khona-ke into izohamba. Ngemva kokuhamba, kuzoba namathuba amathathu, okungukuthi: (1) into ibuyela endaweni yayo yokuqala, (2) into isuka endaweni yayo yokuqala, (3) into ihlala endaweni yayo entsha. Uma ngemva kokuhamba, into ibuyela endaweni yayo yokuqala khona-ke into isendaweni yayo yokuqala ukulingana okuzinzileUma ngemva kokuhamba, into iqhubekela phambili isuka endaweni yayo yokuqala, khona-ke into ingaphakathi ibhalansi engazinzileNgakolunye uhlangothi, uma ngemva kokuhambisa into ihlala endaweni yayo entsha, khona-ke into isesimweni sayo esisha. ibhalansi engathathi hlangothi.
Ukulingana okuzinzile
Into eqale iphumule, uma amandla noma i-torque isetshenziswa kuyo ukuze kube namandla noma umzuzu wamandla ophumelayo oshukumisa into, into izohamba. Into isesimweni esizinzile uma ngemva kokunyakaza into ibuyela endaweni yayo yokuqala. Into ibuyela endaweni yayo yokuqala ngoba kukhona amandla noma umzuzu wamandla ophumelayo.
Isibonelo 1 :
Into ilenga ngentambo evela esisekelweni. Ekuqaleni, into ayimi. Ngemva kokusunduzwa, into iyahamba bese ibuyela endaweni yayo yokuqala. Isikhungo samandla adonsela phansi sento siphakathi nento, kanti i-fulcrum iphakathi kwentambo kanye nesisekelweni.
Into ibuyela endaweni yayo yokuqala ngenxa yamandla adonsela phansi avela ohlangothini oluvundlile (w).s). Ukuqina kwentambo (T) kanye nengxenye yamandla adonsela phansi ohlangothini oluqondile (wy) khansela omunye nomunye ngoba la mandla amabili anobukhulu obufanayo kanye nesiqondiso esiphambene.
Isibonelo 2 :
Into isesigodini. Ekuqaleni, into imile. Ngemva kokususwa, into iya kwesokudla nakwesobunxele bese ibuyela endaweni yayo yokuqala. Into ibuyela endaweni yayo yokuqala ngoba kukhona amandla adonsela phansi avelayo ohlangothini oluvundlile (w).x). Ingxenye yamandla adonsela phansi ohlangothini oluqondile (wy) kanye namandla avamile (N) ayaxoshana ngoba la mandla amabili ayalingana ngobukhulu futhi aphambene ngendlela eqondile.
Isibonelo 3 :
Ekuqaleni, into iphumule. Isikhungo samandla adonsela phansi siphakathi nendawo yento, kanti i-fulcrum ingaphansi kwento, ethintana nobuso obuyisicaba. Ngemva kokuthuthelwa ngakwesokudla, into iphakanyiswa iye kwesokudla. Uma isikhungo samandla adonsela phansi sisesesobunxele se-fulcrum, into isengabuyela endaweni yayo yokuqala ngenxa yomzuzu wamandla akhiqizwa amandla adonsela phansi. Kulokhu, i-fulcrum isebenza njenge-axis yokujikeleza.
Ngakolunye uhlangothi, uma into ithuthelwa kwesobunxele, into izophakanyiswa kwesobunxele. Uma indawo Isikhungo samandla adonsela phansi Uma into isese ngakwesokudla sephuzu lokuzungeza, isengabuyela endaweni yayo yokuqala. Ezinkingeni ezifana nesibonelo sesi-3, into isesekulinganisweni okuzinzile uma, ngemva kokuphakanyiswa ngakwesokudla, isikhungo samandla adonsela phansi sento singadluli iphuzu lokuzungeza. Uma, ngemva kokuphakanyiswa ngakwesokudla, isikhungo samandla adonsela phansi sidlula iphuzu lokuzungeza, into iyaqhubeka nokuhamba isuka endaweni yayo yokuqala. Ezinkingeni ezinjengalezi, into isekulinganisweni okungazinzile.
ibhalansi engazinzile
Into isesimweni sokulingana esingazinzile uma into, ekuqaleni iphumule, inyakaza ngenxa yamandla avelayo noma umzuzu wamandla ophumelayo osebenza entweni. Ngemva kokuhamba, into ayibuyeli endaweni yayo yokuqala kodwa isuka endaweni yayo yokuqala.
Isibonelo 1.
Into iqala iphumule bese ihamba ngenxa yokuphazamiseka (amandla avelayo noma i-torque ephumelayo esebenza entweni). Ngemva kokuhamba, into iyaqhubeka nokuhamba isuka endaweni yayo yokuqala. Into iyasuka endaweni yayo yokuqala ngoba ngemva kokuhamba, isikhungo samandla adonsela phansi singakwesokudla se-fulcrum. Lapho isikhungo samandla adonsela phansi singakwesokudla se-fulcrum, kuba ne-torque ephumelayo noma i-torque ephumelayo ezungeza into isuke endaweni yayo yokuqala.
Isibonelo 2.
Into iqala iphumule esicongweni. Ngemva kokususwa, into iyaqhubeka nokususwa endaweni yayo yokuqala. Into isuswa endaweni yayo yokuqala ngoba kukhona ingxenye yamandla adonsela phansi ohlangothini oluvundlile (w).x).
Ibhalansi engathathi hlangothi
Into isesimweni sokungakhethi uma, ngemva kokushukunyiswa ukuphazamiseka, ihlala endaweni yayo entsha. Into ayibuyeli endaweni yayo yokuqala, futhi ayisuki endaweni yayo yokuqala.
Isibonelo 1.
Ibhola eliqale liphumule endaweni eyisicaba liyanyakaza ngenxa yokuphazamiseka. Ngemva kokuma, ibhola lihlala endaweni yalo entsha. Alibuyeli endaweni yalo yokuqala noma liqhubekele kude nendawo yalo yokuqala.
Isiphetho
Ngokusekelwe encazelweni engenhla, amaphuzu alandelayo angaphethwa.
I-PertamaUma isikhungo samandla adonsela phansi sento singaphansi kwe-fulcrum, into iyohlala isesimweni esizinzile. Isibonelo, into elenga entanjeni esisekelweni.
I-KeduaUma isikhungo samandla adonsela phansi sento singaphezu kwe-fulcrum, ibhalansi yento iyalingana. Into ingaba sebhalansini elizinzile, noma ingaba engazinzile.
I-Ketiga, ibhalansi yento incike ekubunjweni nasosayizi wento. Izinto ezibanzi nezingende kakhulu zizinzile kakhulu kunezinto ezingabanzi nezinde kakhulu.
OkwesineIbhalansi yento incike ebangeni lesikhungo samandla adonsela phansi ukusuka ku-fulcrum. Uma isikhungo samandla adonsela phansi sikude ne-fulcrum, into ivame ukuba se-equilibrium engazinzile. Ngokuphambene nalokho, uma isikhungo samandla adonsela phansi siseduze ne-fulcrum, into ivame ukuba se-equilibrium ezinzile.
