Ijubane liyinani le-vector, kuyilapho ijubane liyinani le-scalar. Ijubane linokukhulu kanye nesiqondiso, kuyilapho ijubane linokukhulu kuphela. Iyunithi yamazwe ngamazwe ingamamitha ngomzuzwana, efingqiwe ngokuthi m/s noma ms -1 . Uphawu lwayo ngu -v ( ijubane ).
Isivinini esimaphakathi kanye nesivinini esimaphakathi
Isibonelo sezinkinga.
1. Umfundi uhamba ngasempumalanga ngamamitha amabili ngomzuzwana owodwa. Ingakanani isivinini esimaphakathi kanye nobukhulu besivinini esimaphakathi somfundi?
Ingxoxo
Isivinini esimaphakathi = 2m/s
Isivinini esimaphakathi = 2m/s
U-Arah = isiqondiso ukufuduka = empumalanga
2. Umfundi uhamba ngasempumalanga ngamamitha amabili ngomzuzwana owodwa, bese ehamba ngasentshonalanga ngemitha elilodwa ngemizuzwana emibili. Ingakanani isivinini esimaphakathi somfundi kanye nesivinini esimaphakathi?
Ingxoxo
Isivinini esimaphakathi = (amamitha ama-2 + imitha eli-1) / (umzuzwana o-1 + imizuzwana emi-2) = amamitha ama-3 / imizuzwana emi-3 = 1 m/s
Kiss = (amamitha ama-2 – imitha eli-1) / (umzuzwana o-1 + imizuzwana emi-2) = imitha eli-1 / imizuzwana emi-3 = 1/3 m/s
U-Arah = isiqondiso sokunyakaza = empumalanga.
Isivinini esisheshayo kanye nesivinini esisheshayo
Isivinini esisheshayo = ibanga elincane kakhulu / isikhathi esifushane kakhulu. Ngamanye amazwi, isivinini esisheshayo ibanga elincane kakhulu elihanjwa ngesikhathi esifushane kakhulu. Uma wake wagibela isithuthuthu noma imoto, uzobe uqaphele ukuthi isivinini sesithuthuthu noma imoto sihlala sishintsha njalo ngesikhathi isithuthuthu noma imoto ihamba. Lesi sivinini esisheshayo sikhonjiswa yi-speedometer.
Ubukhulu besivinini esisheshayo = ukufuduka okuncane kakhulu / isikhawu sesikhathi esifushane kakhulu. Ngamanye amazwi, ukufuduka okuncane kakhulu kuhambe isikhathi esifushane kakhulu.
Sicela uqaphele ukuthi singayishintsha ijubane eliphezulu Dengan isivininiIjubane libhekwa njengejubane ngoba ibanga kanye nokushintsha kunenani elifanayo uma kuncane kakhulu. Nakuba ibanga kanye nokushintsha akuhlali kufana (qhathanisa ingxoxo ngebanga kanye nokushintsha), uma ibanga kanye nokushintsha kuncane kakhulu khona-ke kumelwe kube nenani elifanayo.
