Ifiziksi Yesikole Samabanga Aphezulu

Uma kukhona amandla avelayo entweni enesisindo u-m, khona-ke into ihamba ngendlela eqondile ngokusheshisa u-a. Ubudlelwano phakathi kwamandla avelayo, isisindo kanye nokusheshisa buvezwa ngesibalo:

Lesi yisibalo somthetho wesibili kaNewton owafundwa ekilasini X.

Inani elibonakalayo ekunyakazeni kokujikeleza lifana ne- amandla avelayo kuqhubeke ukunyakaza okuqondile kuyinto umzuzu wamandla ophumelaInani elibonakalayo ekunyakazeni kokujikeleza lifana ne- mass ngokunyakaza okuqondile umzuzu wokungakhathaliInani elibonakalayo ekunyakazeni kokujikeleza lifana ne- ukusheshisa ngokunyakaza okuqondile ukusheshisa kwe-angular.

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1. Isitayela sokulondoloza
Uma umsebenzi owenziwa ngamandla lapho into iqala ukuhamba isuka endaweni yayo yokuqala kuze kube yilapho into ibuyela endaweni yayo yokuqala ilingana no-zero, khona-ke amandla abizwa ngokuthi amandla alondolozayo.
Nazi ezinye izibonelo zezitayela ezilondolozayo.

1.1. Amandla adonsela phansi
Cabanga ngento ehamba iqonde phezulu ize ifinyelele ukuphakama okuphezulu bese ihambela phansi iye endaweni yayo yokuqala. Njengoba ihamba iqonde phezulu ibanga elingu-h, amandla adonsela phansi asendleleni ephambene nokufuduka kwento. Ngenxa yokuthi isendleleni ephambene nokufuduka kwento, amandla adonsela phansi enza umsebenzi ongemuhle entweni.
W = wh cos (180^o) = – wh = – mgh

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Ukungqubuzana okuqinile amandla okungqubuzana asebenza ebusweni bezinto ezithintana lapho izinto zingashukumi.

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Ukungqubuzana kwe-kinetic amandla okungqubuzana asebenza ebusweni bezinto ezithintana lapho izinto zihamba.
Uma ufuna ukuthola amandla okungqubuzana okungaguquki, sebenzisa isibalo 1.5 a. Uma ufuna ukuthola i-kinetic friction coefficient, sebenzisa isibalo 1.5 b.

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Izinto Zamandla E-Kinetic Ekuhambeni Okujikelezayo

Izinto ezihamba emgqeni oqondile zine amandla e-kinetic okungabalwa kusetshenziswa ifomula:
EK = ½ mv²
Imininingwane:
EK = amandla e-kinetic (amayunithi aphesheya angama-kg m²/s² noma uJoule)
m = isisindo (iyunithi yamazwe ngamazwe ingamakhilogramu, ifinyeziwe ingamakhilogramu)
v = isivinini (iyunithi yamazwe ngamazwe imitha/isekhondi, efingqiwe m/s)
Inani elibonakalayo ekunyakazeni kokujikeleza lifana ne- isisindo (m) kuqhubeke ukunyakaza okuqondile kuyinto umzuzu wokungakhathali (I)Inani elibonakalayo ekunyakazeni kokujikeleza lifana ne- isivinini (v) ekujikelezeni kokujikeleza kuyinto ijubane le-angularNgakho-ke, into ejikelezayo inamandla e-kinetic angabalwa kusetshenziswa ifomula:

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Izinto Zokusebenza Zamandla E-Kinetic kanye Nefiziksi

Uma amandla e-net esebenza entweni, into ithola ukusheshisa (kanye nokufuduka). Uma into ithola ukusheshisa, ijubane layo liyashintsha. Kungashiwo ukuthi umsebenzi owenziwa amandla e-net uhlobene nesivinini sokuqala nesokugcina sento.
Umsebenzi owenziwe entweni ngamandla aphelele angaguquki:
Umzamo ophelele (W) = Amandla aphumelayo (F iyonke) x ukufuduka (s)
UMthetho Wesibili kaNewton uthi uma kukhona amandla aphelele asebenza entweni, into izobona ukusheshisa.

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Izibonelo Eziyi-9 Zemibuzo Yebhizinisi

1. Amandla angama-Newton angu-20 asetshenziswa ebhulokini kuze kube yilapho ibhulokhi lihamba ibanga elingamamitha amabili. Umsebenzi owenziwa amandla u-F ebhulokini…
Ingxoxo
I-Diketahui :
Amandla (F) = 20 N
Ukufuduka (ama) = amamitha ama-2
I-Angle = 0 (isiqondiso samandla sifana nesiqondiso sokufuduka noma isiqondiso samandla sihambisana nesiqondiso sokufuduka ukuze i-engeli eyakhiwe amandla kanye nokufuduka kube yi-zero)

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Isimo sokuqala sokulingana komzimba oqinile :
Umthetho Wesibili kaNewton uthi uma amandla avelayo asebenza entweni (into ibhekwa njengenhlayiya) engalingani no-zero, khona-ke into izohamba ngokusheshisa okuqhubekayo lapho isiqondiso sokunyakaza kwento sifana nesiqondiso samandla avelayo. Uma amandla avelayo engu-zero, khona-ke into iphumule noma into ihamba ngesivinini esingaguquki.

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I-Pengertian
Umzimba oqinile ubhekwa njengowakhiwe yizinhlayiya eziningi, kanti isisindo sento siyisamba sesisindo senhlayiya ngayinye eyakha into. Isikhungo sesisindo siyindawo entweni lapho isisindo sazo zonke izinhlayiya ezakha into sibhekwa njengesigxile khona kuleyo ndawo.

Ifomula
Wonke umzimba oqinile ucatshangwa ukuthi wakhiwe yizinhlayiya eziningi, ngayinye eqhelelene kakhulu nomunye. Kodwa-ke, ukuze kube lula ukuthola ifomula yokunquma isikhungo sesisindo, kwenziwa lula ngokuthatha ukuthi umzimba oqinile uqukethe izinhlayiya ezimbili kuphela. Lezi zinhlayiya ezimbili zingabizwa ngokuthi uhlelo lomzimba oluqinile.

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Funda futhi Imibuzo Yesibonelo Sesikhungo Sokudonsa Amandla

Ukuqonda Isikhungo Sokudonsa Amandla
Into eqinile ibhekwa njengeyakhiwe yizinhlayiya eziningi ngenxa yalokhu amandla adonsela phansi esebenza kuleyo naleyo zinhlayiya. Ngamanye amazwi, inhlayiya ngayinye inesisindo sayo. Isikhungo samandla adonsela phansi sento yiphuzu eliseceleni noma eduze kwento lapho isisindo sazo zonke izingxenye zento sigxile khona.

Uma into ifana (ubungako bezinye izinto bufana noma into yakhiwe ngezinto ezifanayo) futhi ukuma kwento kufana (isib. isikwele, unxande, indilinga) khona-ke isikhungo samandla adonsela phansi sento sihambisana isikhungo sesisindo into etholakala phakathi nento. Kunxantathu, isikhungo sobunzima sitholakala ku-1/3 yehora, lapho u-h = ukuphakama konxantathu.

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