Wake wagibela noma wagibela isithuthuthu noma imoto? Ngethemba ukuthi akunjalo 🙂 hehe… uhlala ehlathini 😀 Uma isithuthuthu noma imoto eshayelwayo ihamba ngendlela eqondile futhi ijubane layo lingaguquki, isibonelo amakhilomitha angu-60 ngehora khona-ke isithuthuthu noma imoto ihamba ngendlela eqondile ngesivinini esingaguquki (i-GLB). Imikhumbi ehamba ngesikebhe noma izindiza nazo ngezinye izikhathi zenza i-GLB. Kulula ukubona izinto zihamba ngendlela eqondile empilweni yansuku zonke kodwa kunzima ukubona izinto zenza i-GLB. Ungasho isibonelo se-GLB oye wayibona noma wayicabanga?
Ukuqonda i-GLB
Into yenza i-GLB uma ijubane lento lingaguquguquki. I-Kecepatan kuyinto ubuningi bevektha, ngakho-ke isivinini siqukethe ijubane eliphezulu dan isiqondiso sejubane. Isiqondiso sejubane = isiqondiso sokufuduka = isiqondiso sokunyakaza kwento. Isiqondiso sejubane elingaguquki = isiqondiso sokunyakaza kwento singaguquki = into ihamba emgqeni oqondile. Isivinini esingaguquki noma isivinini = isivinini noma isivinini sihlala sifana ngaso sonke isikhathi. Uma ijubane lento = 10 m/s khona-ke inqobo nje uma into ihamba, ijubane layo lihlala lingu-10 m/s.
Uma into ihamba ngesivinini esingaguquki esingu-10 m/s, isibonelo, ihamba ngamamitha ayi-10 njalo ngomzuzwana. Ngemva komzuzwana owodwa, into isuke ihambe ngamamitha ayi-10 ukusuka endaweni yayo yokuqala. Ngemva kwemizuzwana emibili, into isuke ihambe ngamamitha angama-20 ukusuka endaweni yayo yokuqala. Ngemva kwemizuzwana emithathu, into isuke ihambe ngamamitha angama-30 ukusuka endaweni yayo yokuqala. Njalo njalo… Uma into ihamba ngesivinini esingaguquki esingu-60 km/h, khona-ke ihamba ngamakhilomitha angama-60 njalo ngehora. Ngemva kwehora elilodwa, into isuke ihambe ngamakhilomitha angama-60 ukusuka endaweni yayo yokuqala. Ngemva kwamahora amabili, into isuke ihambe ngamakhilomitha ayi-120 ukusuka endaweni yayo yokuqala. Njalo njalo…
I-GLB ukunyakaza okunejubane elingaguquki (ubukhulu kanye nesiqondiso sejubane kuyaguquguquka), ngakho-ke akukho ukusheshisa ekunyakazeni okuqondile okufanayo. Kufanele kuqashelwe ukuthi i-GLB eyenzeka ebusweni boMhlaba noma ebusweni bamanye amaplanethi yenzeka kuphela ohlangothini oluvundlile, hhayi ohlangothini oluqondile ngoba amandla adonsela phansi asebenza ohlangothini oluqondile futhi abhekana nokusheshisa. ukuwa kwamahhala ohlangothini oluqondile.
RIfomula Yokunyakaza Okulinganayo Okuqondile
Ifomula yokunyakaza okuqondile okufanayo ichaza ubudlelwano phakathi kobuningi obuphathekayo ekunyakazeni okuqondile okufanayo. Kunezinhlobo eziningana eziphathekayo ekunyakazeni okuqondile okufanayo, okuhlanganisa: isikhathi (uphawu ngu-t, iyunithi yamazwe ngamazwe ingeyesibili), ibanga noma ukufuduka (uphawu luyi-s, iyunithi yamazwe ngamazwe iyimitha) kanye nesivinini noma ijubane (uphawu luyi-v, iyunithi yamazwe ngamazwe iyimitha/isekhondi)Ubudlelwano phakathi kwalezi zibalo ezintathu ezibonakalayo buvezwa ngefomula:
v = s/t
Igrafu Yokunyakaza Eqondile Efanayo
Ubudlelwano phakathi kobuningi obubonakalayo ekunyakazeni okuqondile buvezwa ngamagrafu. Igrafu yejubane nesikhathi kanye negrafu yebanga nesikhathi kuboniswe esithombeni esingezansi.
Isibonelo sezinkinga
1. Imoto yomjaho u-A ijaha imoto yomjaho u-B ngesivinini esingaguquki esingu-60 m/s. Imoto yomjaho u-A ingemuva kwamamitha angu-600 emotweni yomjaho u-B endleleni eqondile. Ngaleso sikhathi, imoto yomjaho u-B ihamba ngesivinini esingaguquki esingu-30 m/s. Isikhathi esidingekayo ukuze uhlangabezane nemoto yomjaho u-B…
Ingxoxo
Kuyaziwa:
Isivinini esingaguquki semoto A (v A ) = 60 m/s
Isivinini esingaguquki semoto B (v B ) = 30 m/s
Ibanga phakathi kwemoto A ne-B (s AB ) = amamitha angu-600
Umbuzo: Kuthatha isikhathi esingakanani imoto A ukudlula imoto B?
Impendulo:
Umehluko ngesivinini sezimoto u-A no-B = 60 m/s – 30 m/s = 30 m/s
Ifomula yokunyakaza okuqondile okufanayo:
v = s/t
v = isivinini, s = ibanga, t = isikhathi
t = s / v = 600 / 30 = 20 sec
Isikhathi esidingekayo ukuze imoto A idlule imoto B = imizuzwana engama-20.
