Freefall: kwebalingisi of inkomba ngokomzimba

Freefall - a motion zemizimba ngaphansi isenzo gravity. Uma into ethile ewela udabula emoyeni, bese-ke uqala ukwenza ukumelana kakhudlwana futhi zemvelo, ngakho ukuhamba esinjalo sasingenakuba kubhekwe ukuwa, okuyinto kungenzeka kuphela benganelisekile.

Inani okhombisa ngesilinganiso inkomba, ngokuthi ukusheshisa adonsela phansi. It is iqondiswe thwi phansi futhi ngoba yonke imigwamanda efanayo (kungakhathaliseki isisindo sabo, kodwa ngaphandle ukumelana amandla). Le ndlela kubonakala umthetho, eyasungulwa uGalileo Galilei: bonke eduze umzimba emhlabathini ne ukusheshisa esifanayo, ukufinyelela kwamanzi ngesikhathi esifanayo, noma zingekho izinto nezingahlobene nendaba.

Qinisekisa ukuthi ukuwa libhekene regularities elandelayo ngokwanele lula usebenzisa Newton tube (okubizwa ngokuthi indlela stroboscopic). Lokhu tube ingilazi kabani obuphelele 1 imitha. Omunye emikhawulweni yaso uphawu, omunye umphini itholakala. Uma-ke wabeka pellet, cap futhi feather, bese ngokushesha flip tube, ungabona isici esithile - konke ukufinyelela phansi umzimba ngezikhathi ezehlukene. Eyokuqala ukuwa pellet, ngemva kokuba - ukhokho, lona wamuva kuyoba uphaphe. Kuyaphawuleka ukuthi ngale ndlela umzimba iwe kuphela lapho tube has emoyeni. Uma kuwukuthi ukumpompa futha ekhethekile, bese ujike tube Newton futhi, singabona ukuthi zonke izinto ezintathu ziyokuwa ngesikhathi esifanayo. Lona mahhala ukuwa.

Kuyaphawuleka ukuthi lesi simo has izici ezithile kuye ngokuthi indawo le ndawo. Ngakho, it libhekene aphakeme khulula ukuwa ukushesha ngesikhathi isigxobo. Enkabazwe, ifinyelela amagugu ubuncane - abama-9.75 m / s2. singakuchaza kanjani lo mehluko?

Esinye sezizathu esiyinhloko okuncane ukuphambuka ukubaluleka digital yokusheshisa mahhala ukuwa, kungase kushiwo Ukujikeleza nsuku zonke emhlabeni eksisi le planethi, ushintsho ezakheke uyisiyingi, futhi yokwaba zokwakheka emhlabeni.

Ngaphezu kwalokho, eminye ithonya umzimba ukuphakama ngaphezu kwamanzi planethi. Uma ungenalo acabangele ukujikeleza Earth, izithelo zawo kule ukusheshisa gravity kulinganiselwe ziyancipha. Kuyaphawuleka ukuthi i-ukuphakama amancane, lokhu ipharamitha kubhekwa njalo, futhi umzimba libhekene ezinyakazayo nombala ngesivinini esikhulu.

Mangisho ukuthi kukhona amarekhodi ngokuphathelene Skydiving kusukela Stratosphere. It wamiswa yi ayeyingcweti yokutshuza emoyeni Austrian Feliksom Baumgartnerom. Wanqoba ukuphakama ukuthi kwaba ngaphezu 38 amakhilomitha ngenhla surface eMhlabeni. Manje, ngenxa onesibindi eliphakeme parachute gxuma, futhi ijubane esiphezulu ukuwa komuntu, okuyinto lidlule isivinini umsindo. Ukusetshenziswa kwesabelo-indiza yakho cishe imizuzu engu-4, uFeliksi wavula parachute yakhe futhi wenza ukuthi ihlala ngokuphepha emhlabathini, ukubeka kalula irekhodi elisha kungabikho izinkinga.