Amandla adonsela phansi: umnyombo futhi SIZUZISA

Kasibili yonke kulomzimba, kwachazwa ukuthi lisetshenziswa ngokuqondile ku-Earth futhi yonke, njalo bakhangane. Iqiniso lokuthi leli ukuxhumana kungabonwa noma wazizwa anisoze njalo, nje uthi ukukhangana kulezi ezithile, uma kuqhathaniswa ababuthakathaka.

Ukuxhumana phakathi emizimbeni impahla, okuyinto befuna njalo nomunye, ngokwesikhathi ngokomzimba eziyisisekelo ibizwa ngokuthi amandla adonsela phansi, ngenkathi lo mkhuba gravity - amandla adonsela phansi.

Lo mkhuba adonsela phansi kuyenzeka ngoba emhlabeni ngokuphelele iyiphi into impahla (lekufaka leto letitsatfwe emhlabeni umuntu) kunensimu okudonsa izinto. Le nkambu okwakuvela ohlotsheni olukhethekile lwenkanyezi ndaba, isenzo zazo lutho ongavikela futhi nge okuyinto umzimba izenzo omunye phezu komunye, okubangela ukusheshisa maphakathi umthombo endle. Yilokho ensimini okudonsa Wawugujelwani washayelwa e 1682 yi semvelo British sefilosofi I. umthetho Newton kwamandla adonsela phansi jikelele.

Umqondo oyisisekelo lo mthetho amandla adonsela phansi, okuyinto, njengoba kuphawulwe ngenhla, akukho okunye, ngenxa umthelela emkhakheni okudonsa ngesikhathi esisodwa noma olunye uhlaka impahla. Wesisindo itholakala lokuthi leli butho ngawo sisakhangana zemizimba Emhlabeni emkhathini ongaphandle, kuncike umkhiqizo uquqaba kwalezi, futhi inversely ezihlobene ibanga esasihlukanisa izinto idatha.

Ngakho, amandla adonsela phansi, incazelo eye eyanikezwa Newton, kuxhomeke ezicini ezimbili eziyinhloko - nenqwaba izidumbu uxhumana futhi amabanga therebetween.

Isiqinisekiso sokuthi kwaba khona lokhu mkhuba incike mass we ketshezi zingatholakala ngokuhlola nokuxhumana Zomhlaba ngemizimba elizungezile. Ngokushesha ngemva nezinye usosayensi Newton owaziwa - Galileo - luye lwabonisa ingcaca ukuthi lezo mahhala ukuwa kuyiplanethi yethu usetha yonke imigwamanda baqiniseka ukusheshisa efanayo. Mhlawumbe lokho kumane nje kwenzeka ukuthi amandla adonsela phansi abangelwa yomzimba Umhlaba incike isisindo emzimbeni. Ngoba, ngempela, kulesi simo nokwanda nenqwaba izikhathi ezimbalwa ncamashi isici esifanayo kuzokhulisa futhi ukuphoqa isenzo adonsela phansi, ukusheshisa ngesikhathi esifanayo zihlala zinjalo.

Uma siqhubeka lo mbono futhi ucabangele iyiphi ukuxhumana phakathi izindikimba ezimbili phezu kobuso "Iplanethi blue", kumele kuphetfwe ukuthi ngamunye wabo ngehlangothini yethu "Mother Earth" has eyodwa futhi kunamandla afanayo. Ngesikhathi esifanayo, sithembele umthetho owaziwa, zavela ku Newton esifanayo, singasho kugcwale umlomo ukuthi ubukhulu lamandla kuzoncika isisindo somzimba, ngakho amandla elanga adonsela phansi phakathi lezi zindikimba kuyinto ngokulingana ngqo umkhiqizo uquqaba lwabo.

Ukuze afakazele ukuthi amandla adonsela phansi abangelwa incike ubukhulu igebe phakathi izidumbu, Newton alethe i "umlekeleli" inyanga. Sekuyisikhathi eside sekuvela ukuthi le ukusheshisa ngawo umzimba uwela phansi cishe elilingana 9.8 m / s ^ 2, kodwa ukushesha centripetal zenyanga maqondana iplanethi ngenxa yochungechunge oluthile lwezinto ezenzeke ucwaningo kwatholakala ukuthi s 0,0027 kuphela m / ^ 2.

Ngakho, amandla adonsela phansi - iyona ubukhulu ngokomzimba ezibaluleke kakhulu, okuyinto uchaza abaningi izinqubo ezenzeka kokubili kule mbulunga futhi esikhaleni ezizungezile.