Zinthu Zoyenda Mwaulere Zoyenda Mu Nthawi Yogwa
Kale, kuyenda kwa zinthu zomwe zimagwa pansi kunali nkhani yosangalatsa kwambiri mu filosofi yachilengedwe. Katswiri wafilosofi Aristotle nthawi ina adanena kuti zinthu zomwe zimakhala ndi kulemera kwakukulu zimagwa mofulumira kuposa zinthu zopepuka. Lingaliro la Aristotle linakhudza maganizo a anthu omwe anakhalapo Galileo asanakhalepo, omwe ankakhulupirira kuti zinthu zomwe zimakhala ndi kulemera kwakukulu zimagwa mofulumira kuposa zinthu zopepuka ndipo liwiro la kugwa kwa chinthu limagwirizana ndi kulemera kwake. Mwina musanaphunzire nkhaniyi, munaganizanso chimodzimodzi.
Ikani pepala ndi buku kuchokera kutalika komweko. Ikani pepalalo padzanja lanu lamanzere ndi bukulo padzanja lanu lamanja. Mukangoligwetsa, bukulo limayamba lagunda pansi, pomwe pepalalo limayamba lagunda pansi pambuyo pake. Tsopano, yesani kuyika pepalalo pamwamba pa bukulo, kenako ponya pepalalo ndi bukulo pansi. Nthawi ino, pepalalo ndi bukulo zinagunda pansi nthawi imodzi.
Chinthu chimanenedwa kuti chimatha kuyenda momasuka ngati chinthucho chikuyenda molunjika pakati pa dziko lapansi ndipo panthawi yoyenda, chinthucho chimatha kuyenda molunjika nthawi zonse. Ngati chigwa momasuka pafupi ndi dziko lapansi, chinthucho chimatha kuyenda molunjika nthawi zonse pa 9,8 m/s2 ndipo njira yolowera molunjika pakati pa dziko lapansi (yolunjika pamwamba pa dziko lapansi). Kuti zikhale zosavuta kuwerengera komwe ophunzira omwe akuphunzira azichita, g imazunguliridwa kufika pa 10 m/ s2.
Pali zochitika zitatu zosiyana, kuphatikizapo:
1. Chinthucho chimayenda molunjika pansi popanda liwiro loyambirira (palibe v)oMwachitsanzo, chipatso chimagwa kuchokera mumtengo chikachotsedwa pa tsinde lake. Njira yoyendera nthawi zonse imakhala pansi ndipo chinthucho chimathamanga, motero kuthamanga kwa mphamvu yokoka (g) nthawi zonse kumakhala kwabwino. M'mabuku ena a sayansi ya zakuthambo amatchedwa kuyenda kwaulere kwa kugwa
2. Chinthucho chimapita molunjika pansi ndi liwiro loyambirira (pali voMwachitsanzo, mwala umaponyedwa molunjika pansi. Njira yoyendera nthawi zonse imakhala pansi ndipo chinthucho chimathamanga, motero g nthawi zonse imakhala yabwino. M'mabuku ena a sayansi ya zakuthambo imatchedwa kuyenda koyima pansi.
3. Chinthu chimapita molunjika mmwamba ndi liwiro loyambirira. Chikafika kutalika kwake kwakukulu, chinthucho chimabwerera pansi. Mwachitsanzo, mumaponya mwala molunjika mmwamba kenako nkuugwiranso pamene ukutsika. Mukapita mmwamba, chinthucho chimatsika (negative g), mukapita pansi, chinthucho chimathamanga (positive g). M'mabuku ena a sayansi ya fizikisi, izi zimatchedwa kuyenda koyima mmwamba.
Tiyenera kudziwa kuti ngati chinthu chikukumana ndi chimodzi mwa zinthu zitatu zomwe zili pamwambapa, chinthucho chimanenedwa kuti chili mu kugwa kwaulere.
Fomula Yoyenda Mwaulere Yogwa
Kuyenda kwa free fall ndi chitsanzo cha kuyenda kwa linear komwe kumasintha mofanana, motero njira yoyendera free fall ndi yofanana ndi njira yoyendera linear yomwe imasintha mofanana ndipo imasinthidwa kuti igwirizane ndi momwe kuyenda kwa free fall kumakhalira.
Zambiri:
h = kutalika (mamita), vo = liwiro loyambirira (mamita/sekondi), vt = liwiro lomaliza (mita/sekondi), t = nthawi (yachiwiri), g = kuthamanga chifukwa cha mphamvu yokoka (mita/sekondi)2) = 9,8 m/s2 kapena 10 m/s2.
Kuthamanga kosalekeza kwa mphamvu yokoka ya 10 m/s2 (positive g - chinthu chimatsika pansi), zomwe zikutanthauza kuti liwiro la chinthucho limawonjezeka ndi 10 m/s sekondi imodzi iliyonse. Masekondi awiri pambuyo pake, liwiro la chinthucho limakhala 20 m/s, masekondi atatu pambuyo pake liwiro la chinthucho limakhala 30 m/s. Kuchepa kwa mphamvu yokoka kosalekeza ndi 10 m/s2 (g ndi negative, chinthucho chimapita mmwamba) kutanthauza kuti liwiro la chinthucho limachepa ndi 10 m/s2 Sekondi imodzi iliyonse. Masekondi awiri pambuyo pake, liwiro la chinthucho limachepa ndi 20 m/s. Masekondi atatu pambuyo pake, liwiro la chinthucho limachepa ndi 30 m/s.
Kuthamanga kapena kutsika kwa liwiro nthawi zonse kumachitika pafupi ndi dziko lapansi. Lamulo la Newton la mphamvu yokoka, mudzaphunzira kuti mtengo wa g umachepa ndi sikweya ya mtunda.
Phunzirani zitsanzo za mavuto oyenda pansi , zitsanzo za mavuto oyenda pansi ndi zitsanzo za mavuto oyenda pansi kuti mumvetse bwino zomwe zili mu kayendedwe ka pansi.
