Izinkinga Ezixazululiwe ku-Basic Physics

Ukushayisana - izinkinga nezixazululo

1. Into A (3 kg) ihamba ngesivinini esingu-8 m/s kanye nento B (5 kg) ihamba ngesivinini esingu-4 m/s. Uma ukushayisana phakathi kwezinto A no-B kunwebeka ngokuphelele, kuyini velocity kwezinto u-A no-B ngemva kokushayisana?

Kwaziwa:

Imisa kwento A (m₁) = 3 kg

Isisindo sento B (m₂) = 5 kg

The ijubane kwento A (v)₁) = 8 ms^-1

Isivinini sento B (v)₂) = 4 ms^-1

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Ama-vector eyunithi - izinkinga nezixazululo

1. Into ihamba nge- velocity ka-v = (2i − 1.5j) m/s. Iyini i- Ukuhambisa lento ngemva kwemizuzwana emi-4?

Kwaziwa:

Ingxenye evundlile yejubane (v)_x) = 2 m/s

Ingxenye eqondile yejubane (v)_y) = 1.5 m/s

Isikhawu sesikhathi (t) = imizuzwana eyi-4

Kufunwa: displacement

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Ukufuduka kwe-Vector - ​​izinkinga nezixazululo

1. Umuntu uhamba ukusuka endaweni A ukuya endaweni B, amamitha angu-600 enyakatho; bese efika endaweni C, amamitha angu-400 entshonalanga; bese efika endaweni D, amamitha angu-200 eningizimu; bese eqeda endaweni E, amamitha angu-700 empumalanga. Ubukhulu balo mgwaqo buyini? Ukuhambisa?

Isixazululo:

Kwaziwa:

AF = AB – BF = AB – CD = 600 – 200 = 400 m

EF = DE – DF = DE – BC = 700 – 400 = 300 m

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Ukwengeza ama-vector usebenzisa izingxenye - izinkinga nezixazululo

1. Amavektha amathathu njengoba kuboniswe esithombeni esingezansi.

V₁ = 30

V₂ = 30

V₃ = 40

Uyini umphumela zithwala.

Kwaziwa:

V₁ = 30, i-engeli ephakathi kuka-V₁ kanye ne-x axis = 30^o

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Imidwebo yokunyakaza okuqondile - izinkinga nezixazululo

1. Ibanga legrafu (eliqondile) uma liqhathaniswa nesikhathi (eliqondile) njengoba kuboniswe esithombeni esingezansi. Into ephumulile eboniswe ngenombolo…

Isixazululo:

Inombolo 3, ekhonjiswa ngomugqa oqondile.

Funda kabanzi

Isivinini esimaphakathi - izinkinga nezixazululo

1. Umuntu uzungeza unxande onobude obungamamitha angu-400 nobubanzi obungamamitha ayi-100, izikhathi ezingu-12 ngehora eli-1. Ziyini lezi zinto? ijubane elimaphakathi futhi isivinini esimaphakathi?

Kwaziwa:

Ubude besikwele = amamitha angu-400

Ububanzi besikwele = amamitha ayi-100

Ukujikeleza kwesikwele = (2 x 400 amamitha) + (2 x 100 amamitha) = amamitha angu-800 + amamitha angu-200 = amamitha ayi-1000

Ibanga = 12 x 1000 amamitha = 12,000 amamitha = 12 amakhilomitha

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Umgomo omnyama - izinkinga nezixazululo

1. Amanzi angu-200 amagremu ku-30°C axutshwe namanzi angu-100 amagremu ku-90°C. ukushisa okuqondile amanzi = 1 cal.gram^-1° C^-1Thola izinga lokushisa lokugcina lengxube!

Kwaziwa:

Imisa amanzi 2 (m₁) = amagremu ayi-200

Izinga lokushisa lamanzi 1 (T)₁= = 30^oC

Isisindo samanzi 2 (m₂) = amagremu ayi-100

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Izinto eziyi-10 ezixhunywe ngentambo phezu kwe-pulley Umshini we-Atwood – Izinkinga Nezixazululo

1. Ibhulokhi A ene- Mass okungama-5 kg, kubekwe endaweni ebushelelezi evundlile. Ibhlokhi B elinesisindo esingama-3 kg esilenga kolunye uhlangothi lwentambo exhunywe nebhlokhi A phezu kwe-pulley. Ukusheshisa ngenxa yamandla adonsela phansi ingu-10 m/s². Kuyini ukusheshisa yamabhulokhi womabili?

Kwaziwa:

Isisindo sebhulokhi A (m_A) = 5 kg

Isisindo sebhulokhi B (m_B) = 3 kg

Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s²

Funda kabanzi

Ukunyakaza okujikelezayo - izinkinga nezixazululo

1. Into enesisindo esingamakhilogremu ayi-10 ihamba ngendilinga ngesivinini esingaguquki esingu-4 m/s. Uma irediyasi yendilinga ingamamitha angu-0.5, khona-ke:

1) Imvamisa yezindilinga ingu-4/π Hz

I-2) i ukusheshisa okuphakathi ingu-32 ms^-2

I-3) i amandla centripetal ingu-320 N

4) Isikhathi singu-4π s.

Yiziphi izitatimende eziyiqiniso?

Funda kabanzi