Muenzaniso wekubonderana kwakanyatsosimba

Mienzaniso 8 yekuroverana kwakanyatsosimba

1. Bhora A nebhora B, rimwe nerimwe rine huremu hwemagiramu mazana maviri, zvikabonderana nenzira inonamira zvakanaka. Kana bhora A risati rabonderana, richifamba nekumhanya kwe10 m/s uye bhora B rakazorora, saka kumhanya kwebhora A nebhora B mushure mekubonderana...

Kukurukurirana
Zvinozivikanwa :
Huremu hwebhora A (m)_A) = magiramu mazana mashanu = 0,2 kg
Huremu hwebhora B (m)_B) = magiramu mazana mashanu = 0,2 kg
Kumhanya kwebhora A pamberi pekurovera (v)_A) = 10 m/s
Kumhanya kwebhora B risati rasangana (v)_B= = 0
Akabvunzwa : kumhanya kwebhora A (v)_A') uye bhora B (v)_B') mushure mekuroverana
Jawab :

Vhura kuroverana kwakanyatsonaka, kana chinhu chekurovera B chisati chaitika (v)_B = 0) zvino mushure mekuroverana kwechinhu A chinoramba chiripo (v_A' = 0) uye chinhu B chinofamba ne kumhanya iyo yakaenzana nekumhanya kwechinhu A chisati chasangana (v_B' = v_A).
v_A' = v_B = 0
v_B' = v_A = 10 m/s

2. Matombo A naB ane huremu hwakafanana, anofamba akanangana uye anobonderana zvisina kusimba. Matombo A asati arovana, matombo A anofamba nekumhanya kwe8 m/s uye matombo B anofamba nekumhanya kwe10 m/s. speed ye12 m/s. Hukuru uye kutungamira kwekumhanya kwemabhuru A nemabhuru B mushure mekuroverana…

Kukurukurirana
Zvinozivikanwa :
Huremu hwemabhuru A (m)_A) = m
Huremu hwemabhuru B (m)_B) = m
Kumhanya kwemarble A pamberi pekurovera (v)_A) = -8 m/s
Kumhanya kwedombo remabhuru B risati rasangana (v)_B) = 12 m/s
Kumhanya kwemabhuru maviri aya kwakanyorwa kuti kwakanaka uye kusina kunaka, zvichiratidza kuti mafambiro kana kumhanya kwezvinhu zviviri izvi kwakatarisana.
Akabvunzwa : hukuru uye kutungamira kwekumhanya kwemabhuru A (v)_A') uye dombo remabhuru B (v)_B') mushure mekuroverana
Jawab :
Kana zvinhu zviviri zviri kuroverana zvakabatana, kana huwandu hwezvinhu zviviri zviri kuroverana hwakaenzana, saka kumhanya kwechinhu A mushure mekuroverana (v)_A') = kumhanya kwechinhu B chisati chasangana (v)_B) uye kumhanya kwechinhu B mushure mekuroverana (v_B') = kumhanya kwechinhu A usati wasangana (v)_A).
Zvakadini nekwakanangana nekufamba kana kwakanangana nekumhanya kwezvinhu? Kana chinhu A chisati chasangana chikafamba kurudyi uye chinhu B chikafamba kuruboshwe, ipapo mushure mekusangana chinhu A chikafamba kuruboshwe (v)_A' = – v_B) uye chinhu B chinoenda kurudyi (v_B' = v_A).

Matombo ese ari maviri ane huremu hwakafanana uye anogovana zvakanaka zvekuti matombo maviri aya anochinjana nekumhanya.
v_A' = -v_B = -12 m/s
v_B' = v_A = 8 m/s
Zviratidzo zvakanaka nezvakaipa zvinoratidza kuti mushure mekuroverana, divi rekumhanya kwemarble A rinopesana nedivi rekumhanya kwemarble B.

3. Chinhu A chine huremu hwe2 kg uye chinhu B chine huremu hwe4 kg zviri kufamba zvichienda kune chimwe nechimwe, uko kumhanya kwechinhu A kuri 10 m/s uye kumhanya kwechinhu B kuri 20 m/s. Kana zvinhu zviviri izvi zvikabonderana nenzira yakanyatsotsetseka, saka kumhanya kwechinhu A nechinhu B mushure mekubonderana kunova…
Kukurukurirana
Zvinozivikanwa :
Huremu hwechinhu A (m)_A) = 2 kg
Huremu hwechinhu B (m_B) = 4 kg
Kumhanya kwechinhu A chisati chasangana (v)_A) = 10 m/s
Kumhanya kwechinhu B chisati chasangana (v)_B) = 20 m/s
Akabvunzwa : kumhanya kwechinhu A (v)_A') uye chinhu B (v)_B') mushure mekuroverana
Jawab :
Kana zvinhu zvinobonderana zvine huremu hwakasiyana uye zvinhu zviviri zvikafamba zvichienda kune mumwe nemumwe nekumhanya kwakati, saka kumhanya kwezvinhu zviviri mushure mekubonderana kunoverengerwa uchishandisa equation inotevera:
Kumhanya kwechinhu A mushure mekuroverana ndekwekuti:

Mushure mekuroverana, zvinhu zviviri izvi zvinoenda kure.

4. Chinhu chine huremu hwemagiramu zana chichifamba nekumhanya kwe20 m/s chinoroverana nemadziro nenzira inonamira zvakanaka. Hukuru negwara rekumhanya kwechinhu mushure mekuroverana...
Kukurukurirana
Zvinozivikanwa :
Huremu hwechinhu (m_A) = magiramu mazana mashanu = 0,1 kg
Huremu hwemadziro (m)_B) = kusingaperi (rusvingo runoonekwa serune huremu husingaperi)
Kumhanya kwechinhu chisati charovera (v)_A) = 20 m/s
Kumhanya kwerusvingo rusati rwarovera (v)_B= = 0
Akabvunzwa : hukuru uye kutungamira kwekumhanya kwechinhu mushure mekuroverana
Jawab :
Kana v_B = 0, m_A kadiki kwazvo uye m₂ yakakura kwazvo, saka nekugadzirisa equation iri pamusoro tinowana v_A' = -v_A uye v₂' = 0. Zviratidzo zvakanaka nezvakaipa zvinoratidza mafambiro akasiyana echinhu.

Saka kumhanya kwechinhu mushure mekuroverana ndekwekuti (v)_A') iri -20 m/s uye hukuru hwekumhanya kwemadziro mushure mekuroverana i0. Kutungamira kwekumhanya kwechinhu mushure mekuroverana kwakatarisana nekutungamira kwekumhanya kwechinhu chisati charoverana. Kana chinhu chisati charoverana chikafamba kurudyi, chinhu chikafamba kuruboshwe kana kana chinhu chisati charoverana chikafamba kuruboshwe, chinhu chikafamba kurudyi.

5. Chinhu A nechinhu B zvinofamba zvichienda kune chimwe nechimwe. Kana m_A = m_B mu_A = 4 m/s, v_B = 3 m/s uye pasi parinotsvedza, chii chiri kumhanya kweA neB mushure mekuroverana kwakanyatsosimba?
A. 3 m/s kuruboshwe uye 4 m/s kurudyi
B. 3 m/s kurudyi uye 4 m/s kurudyi
C. 3 m/s kuruboshwe uye 4 m/s kuruboshwe
D. 3 m/s kuruboshwe uye 3 m/s kurudyi
E. 4 m/s kuruboshwe uye 4 m/s kurudyi
Kukurukurirana:
Zvinozivikanwa :
v_A = 4 m/s, v_B = 3 m/s
Akabvunzwa :
v_A' uye v_B'?'
Jawab :
Vhura kuroverana kwakanyatsonakaKana huremu hwezvinhu zvese zviri zviviri hwakafanana, saka pazvinobonderana, zvinhu zviviri zvinochinjana kumhanya. Saka
v_A' = 3 m/s uye v_B' = 4 m/s
Kana chinhu A chikafamba kuruboshwe, ipapo mushure mekusangana, chinhu A chikafamba kurudyi. Saizvozvowo, kana chinhu B chikafamba kurudyi, ipapo mushure mekusangana, chinhu B chikafamba kuruboshwe. Zvinhu zviviri izvi zvisati zvasangana uye zvapera, zvinofamba nenzira dzakasiyana.
Mhinduro chaiyo ndiA.

6. m_A = 2 kg uye m_B = 1 kg inofamba ichitarisana nekumhanya v_A = 2 m/s uye v_B = 3 m/s. Dzose dzinobonderana zvakanaka. Bhora A rinomhanya zvakadii mushure mekubonderana?
A. 1/2 m/s
B. 2/3 m/s
C. 1 m/s
D. 3/2 m/s
E. 2 m/s
Kukurukurirana:
Zvinozivikanwa :
m_A = 2 kg, m_B = 1 kg, v_A = 2 m/s, v_B = 3 m/s
Akabvunzwa :
v_A'?'
Jawab :

Kana zvinhu zviri kuenderana kuroverana kwakanyatsonaka zvine huremu hwakasiyana, saka zvinhu zviviri izvi hazvichinji kumhanya.
Kumhanya kwechinhu chimwe nechimwe mushure mekuroverana kunoverengerwa uchishandisa fomura:

Mhinduro chaiyo ndeiyi B.

7. Bhora A rinofamba rakatwasuka nepadanho risingachinji kurudyi nepadanho rekutanga re 1 m/s uye nekumhanya kwe 1 m/s.²Mushure mekufamba kwemasekonzi maviri, bhora A rinobonderana nebhora B risingamire. Kana kuroverana kwacho kwakanyatsosimba uye huwandu hwemabhora ese ari maviri hwakafanana, saka kumhanya kwemabhora A neB mushure mekubonderana kwacho...
A. v_A` = 0 uye v<sub>B</sub>` = 3 m/s
B. v_A` = 2 m/s uye v<sub>B</sub>` = 3 m/s
C. v_A` = 3 m/s uye v<sub>B</sub>` = 0 m/s
D. v_A` = 3 m/s uye v<sub>B</sub>` = 2 m/s
E. v_A` = 4 m/s uye v<sub>B</sub>` = 2 m/s
Kukurukurirana:
Zvinozivikanwa :
Ruzivo rwekufamba kwebhora A:
v_o = 1 m/s, a = 1 m/s², t = masekondi maviri, v_t =?
Ruzivo rwekuroverana:
v_A = ? , v_B = 0, m_A = m_B
Akabvunzwa :
v_A' uye v_B'
Jawab :
Kumhanya kwebhora A nguva pfupi vasati varoverana (v)_A):
v_t =v_o + pa = 1 + (1)(2) = 1 + 2 = 3 m/s
Saka v_A = 3 m/s
Huremu hwemabhora ese ari maviri hwakafanana saka mabhora maviri aya anochinjana kumhanya.
v_A' = 0 uye v_B' = 3 m/s
Bhora A risati raroverana, rinofamba kurudyi, mushure mekuroverana, bhora A rinenge rakamira. B risati raroverana, bhora B rinenge rakamira, mushure mekuroverana, rinofamba kurudyi.

Mhinduro chaiyo ndiA.

8. Kana mabhuru maviri akafanana achifamba akanangana nekumhanya kwakafanana munzira yakatwasuka obva agumburana, rimwe remabhuru richaburitsa simba raro uye rimwe bhuru richawana simba rakafanana.

Nokuti

Mutemo wekuchengetedza simba unoita kuti simba rese remabhuru maviri rirambe risina kuchinja.

Kukurukurirana

Chirevo chiri pamusoro apa ndechechokwadi kana mhando yekubonderana ichinyatsosimba.

Kwakabva mubvunzo:

Mibvunzo yeNational Examination Physics yeChikoro Chesekondari/Chikoro Chepamusoro Chebasa

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