Izibonelo ezi-3 zemibuzo yesivinini esimaphakathi
1. Njalo ekuseni, uHadi uhlala egijima ezungeza insimu enobukhulu obuyi-100 m x 400 m izikhathi eziyi-12 ngehora eli-1. Isivinini esimaphakathi futhi isivinini esimaphakathi sokunyakaza kukaHadi...
A. 0 km/h kanye ne-12 km/h
B. 0 km/h kanye no-6 km/h
C. 6 km/ihora kanye ne-12 km/ihora
D. 6 km/h kanye no-6 km/h
E. 12 km/h kanye ne-12 km/h
Ingxoxo
Kuyaziwa ukuthi:
Ubude bensimu = amamitha angu-400
Ububanzi bensimu = amamitha ayi-100
Umngcele wensimu = (2 x 400 amamitha) + (2 x 100 amamitha) = amamitha angu-800 + amamitha angu-200 = amamitha angu-1000
Ibanga likaHadi = 12 x 1000 amamitha = 12.000 amamitha = 12 amakhilomitha
Okubuziwe: Isivinini esimaphakathi kanye nesivinini esimaphakathi
Impendulo:
Isivinini esimaphakathi:
UHadi wazungeza insimu izikhathi ezingu-12, okusho ukuthi ngemva kokugijima, uHadi wabuyela endaweni yakhe yokuqala, ngakho-ke ukufuduka kwakhe kwaba yi-zero. Njengoba ukufuduka kwakuyi-zero, ijubane elimaphakathi laliyi-zero.
Isivinini esimaphakathi:
Isivinini esimaphakathi = ibanga eliphelele elihanjiwe / isikhathi esiphelele = 12 km / ihora eli-1 = 12 km/ihora
Impendulo efanele ngu-A.
2. Igrafu eseceleni ikhombisa ubudlelwano phakathi kwebanga (s) nesikhathi (t) sento ehambayo. Uma u-s eku-m, kanti u-t eku-seconds, khona-ke isivinini esimaphakathi sento...
A. 0,60 ms -1
B. 1,67 ms -1
C. 2,50 ms -1
D. 3,0 ms -1
I-E. 4,6 ms -1
Ingxoxo
Isivinini esimaphakathi = Ibanga eliphelele elihanjiwe / Isikhathi esiphelele sesikhawu
Isivinini esimaphakathi = amamitha ayi-15 / imizuzwana eyi-6 = amamitha ayi-2,5/umzuzwana
Impendulo efanele ngu-C.
3. Inhlayiya isuka enyakatho isuka endaweni yokuqala (0,0) iya endaweni ethi P (2,4) ngemizuzwana emi-3. Inhlayiya ijika ibheke empumalanga imizuzwana emi-2 ize ifike endaweni ethi Q (10,10). Ijubane elimaphakathi lapho inhlayiya isuka ku-P iya ku-Q lilingana no….
A. 2 ms-1
B. 5 ms -1
C. 7 ms -1
D. 10 ms -1
E. 12 ms -1
Ingxoxo
Ukufuduka kwe-PQ:
Isivinini esimaphakathi:
Impendulo efanele ingu-B.
4. Uma ijubane elimaphakathi lento liyi-zero, khona-ke...
A. izinto ezihamba ngesivinini esingaguquki
B. ibanga elihanjiwe lilingana no-zero
C. izinto ezihambayo emuva naphambili
D. ukufuduka kwento kulingana no-zero
E. isivinini esimaphakathi sento silingana no-zero
Ingxoxo
Ifomula yejubane elimaphakathi = ukufuduka okuphelele / isikhawu sesikhathi esiphelele
Uma ijubane elimaphakathi lento liyi-zero, khona-ke ukufuduka kwento kuyi-zero.
Impendulo efanele ngu-D.
Umthombo wombuzo:
Imibuzo Yefiziksi Yezivivinyo Zikazwelonke Zesikole Samabanga Aphezulu/Isikole Samabanga Aphezulu Sokufundela Umsebenzi
