Sainzi

Kunzwisisa Kureba
Kureba kwenzira inofamba nechinhu. Kureba kwenzira inotsanangurwa nechiyero, huwandu hwemuviri hune hukuru chete uye husina gwara. Chiyero chepasi rose chedaro imita, yakapfupikiswa m. Chiratidzo chedaro ndi s.

Tsanangudzo yeKudzingwa
Kuchinja chinzvimbo chechinhu. Kuchinja chinzvimbo inhamba yevector, huwandu hwemuviri hune hukuru uye gwara. Kutungamira kwekuchinja kunogona kuratidzwa segwara guru (kuchamhembe, kumabvazuva, kumaodzanyemba, kumadokero, nezvimwewo) kana kushandisa mazwi ekuti kuruboshwe, kurudyi, kumusoro, kana pasi.

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Mutemo wekuchengetedza angular momentum akataura kuti kana nguva yesimba inoguma muchinhu chakasimba chiri kutenderera kukosha kwacho kuri zero ipapo simba rekona Chinhu chakasimba chiri mukufamba kwakatenderera nguva dzose. Fomura yemutemo wekuchengetedza angular momentum inogona kuwanikwa nemasvomhu nekushandura fomura yemutemo wechipiri waNewton wekufamba kwe angular momentum.

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Kana paine simba rinobuda pachinhu chine huremu m, chinhu chinofamba chakatwasuka nekuwedzera simba a. Hukama huripo pakati pesimba rinobuda, huremu nekukurumidzisa hunoratidzwa kuburikidza ne equation:

Uyu ndiwo muenzaniso wemutemo wechipiri waNewton wakadzidzwa mukirasi X.

Huwandu hwemuviri mukufamba kwese kwese hwakafanana ne simba rinobuda pada kufamba kwakatwasuka ndizvo nguva yesimba inogumaHuwandu hwemuviri mukufamba kwekutenderera hwakafanana ne mass kufamba kwakatwasuka ndiko nguva yekusaita basaHuwandu hwemuviri mukufamba kwekutenderera hwakafanana ne kukurumidza kufamba kwakatwasuka ndiko kukurumidza kwekona.

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1. Maitiro ekuchengetedza tsika
Kana basa rinoitwa nesimba kana chinhu chatanga kufamba kubva panzvimbo yacho yekutanga kusvika chinhu chadzokera panzvimbo yacho yekutanga rakaenzana ne zero, saka simba racho rinonzi simba risingachinji.
Heano mimwe mienzaniso yemaitiro ekuchengetedza.

1.1. Simba regiravhiti
Funga nezvechinhu chinofamba chakamira mudenga kusvika chasvika pakakwirira uye chobva chadzika pasi kuenda panzvimbo yacho yekutanga. Pachinofamba chakamira mudenga chinhambwe che h, simba regiravhiti riri munzira yakatarisana nekufamba kwechinhu. Nekuti chiri munzira yakatarisana nekufamba kwechinhu, simba regiravhiti rinoita basa rekusashanda pachinhu chacho.
W = wh cos (180)^o) = – wh = – mgh

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Kukweshana kwakasimba (Static friction) isimba rekukweshana rinobata zvinhu zvinenge zvakabatana kana zvinhu zvacho zvisiri kufamba.

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Kinetic friction isimba rekukweshana rinobata pamusoro pezvinhu zvinenge zvakabatana kana zvinhu zvichifamba.
Kana uchida kuona simba rekukweshana rinomira, shandisa equation 1.5 a. Kana uchida kuona kinetic friction coefficient, shandisa equation 1.5 b.

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Kinetic Energy Material muRotational Motion

Zvinhu zviri kufamba mumutsara wakatwasuka zvine simba rekufamba izvo zvinogona kuverengerwa uchishandisa fomura:
EK = ½ mv²
Information :
EK = simba rekinetic (mayuniti epasi rose ari kg m²/s² kana Joule)
m = huremu (chikamu chepasi rose ikirogiramu, kg yakapfupikiswa)
v = kumhanya (chikamu chepasi rose imita/sekondi, chakapfupikiswa m/s)
Huwandu hwemuviri mukufamba kwese kwese hwakafanana ne huremu (m) pada kufamba kwakatwasuka ndizvo nguva yekusaita basa (I)Huwandu hwemuviri mukufamba kwekutenderera hwakafanana ne kumhanya (v) mukufamba kwekutenderera ndiko kumhanya kwekonaSaka, chinhu chinotenderera chine simba rekufamba kwemhepo rinogona kuverengerwa uchishandisa fomura iyi:

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Kinetic Energy uye Fizikisi Zvekushandisa Pabasa

Kana simba remagetsi rikashanda pachinhu, chinhu chinosangana nekukurumidzisa (uye kutama). Kana chinhu chikasangana nekukurumidzisa, kumhanya kwacho kunochinja. Zvinogona kutaurwa kuti basa rinoitwa nesimba remagetsi rine chekuita nekumhanya kwekutanga uye kwekupedzisira kwechinhu chacho.
Basa rinoitwa pachinhu nesimba risingaperi:
Kushanda nesimba rose (W) = Simba rinobuda (F huwandu) x kutama (s)
Mutemo wechipiri waNewton unoti kana paine simba rose rinoshanda pachinhu, chinhu chacho chichakurumidza kufamba.

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Mienzaniso 9 yeMibvunzo yeBhizinesi

1. Simba remaNewton makumi maviri rinoiswa pabhokisi kusvika bhokisi rafamba chinhambwe chemamita maviri. Basa rinoitwa nesimba F pabhokisi iri…
Kukurukurirana
Zvinozivikanwa :
Simba (F) = 20 N
Kutama (s) = mamita mana
Angle = 0 (gwara resimba rakafanana negwara rekufamba kana gwara resimba rinoenderana negwara rekufamba zvekuti kona inoumbwa nesimba nekufamba iri zero)

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Chimiro chekutanga chekuenzana kwemuviri wakasimba :
Mutemo weChipiri waNewton unoti kana simba rinobuda richishanda pachinhu (chinhu chacho chinoonekwa sechimedu) risingaenzane ne zero, chinhu ichocho chichafamba nekukurumidzisa nguva dzose uko gwara rekufamba kwechinhu rakafanana negwara resimba rinobuda. Kana simba rinobuda riri zero, chinhu chacho chiri pazororo kana kuti chinhu chacho chiri kufamba nekumhanya kusingachinji.

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