Wukuthi umehluko phakathi Speed futhi Velocity?
Ijubane libonisa kuphela ukuthi into ihamba ngokushesha kangakanani, kuyilapho isivinini sichaza kokubili ukuthi ihamba ngokushesha kangakanani nokuthi ihamba ngayiphi indlela. Uma kuthiwa imoto ihamba ngamamayela angu - 60 ngehora, ijubane layo liye lachazwa. Nokho, uma kuthiwa imoto ihamba ngesivinini esingamakhilomitha angu - 60 ngehora ibheke enyakatho, manje isivinini sayo sesichaziwe.  Umehluko omkhulu ungabonwa lapho kucatshangelwa ukunyakaza kuzungeza isiyingi. Lapho okuthile kuhamba ngendlela eyisiyingi bese kubuyela endaweni okuqalwa kuyo, isivinini saso esivamile silingana no-zero, kodwa isivinini saso esivamile sitholakala ngokuhlukanisa ububanzi besiyingi nesikhathi esithathayo sokujikeleza isiyingi. Lokhu kungenxa yokuthi isivinini esimaphakathi sibalwa ngokucabangela kuphela ukufuduka phakathi kwamaphuzu okuqala nawokuphela, kuyilapho isivinini esimaphakathi sicabangela kuphela ibanga eliphelele elihanjiwe.