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.
Kana paine nguva yesimba inoguma pane chinhu chine nguva yekusaita basa ipapo chinhu chinotenderera ne kukurumidza kwekona Hukama huripo pakati penguva yesimba inobuda, nguva yekusaita chinhu uye kukurumidza kwe angular hunoratidzwa kuburikidza ne equation:
Equation yemutemo wechipiri waNewton wekufamba kwese kwakafanana neequation yemutemo wechipiri waNewton wekufamba kwese kwakare.
Muenzaniso wezvinetso
1. Puredhi yakasimba ine huremu hwe1 kg uye radius ye10 cm ine tambo yakatenderedzwa kumucheto kwayo, uye huremu hwe1 kg hwakaturikwa kune rumwe rutivi rwetambo. Ngatitii tambo haina huremu. Sarudza hukuru hwekudzikira kwehuremu. g = 10 m/s2.
Kukurukurirana
Zvinozivikanwa kuti:
F = w = mg = (1)(10) = 10 Newtons
r = mita imwe
Mubvunzo: kukurumidza kwemutoro (a)?
Mhinduro:
Verenga nguva yekusashanda nesimba uye nguva yesimba:
Nguva yekusashanda kwepulley yedhisiki yakasimba:
Ini = ½ mr2 = ½ (1)(0,1)2 = (0,5)(0,01) = 0,005 kg m2
Nguva yesimba:
Kukurumidza kwepulley kwekona:
Kukurumidza kwemutoro:
2. Pulley yedhisiki yakasimba ine huremu hwe2M uye radius yeR, inoputirwa kumucheto netambo, uye mutoro wehuremu m unoturikwa kune rumwe rutivi rwetambo. Kana mutoro wasunungurwa, pulley inotenderera nekukurumidzisa kwekona kwe alfaKana chinhu chine huremu M chakabatanidzwa nepulley, pulley ichatenderera nekukurumidzisa kwakafanana kwekona, huremu hwemutoro hunofanira kugadzirwa... (I pulley = ½ MR2)
Kukurukurirana
Zvinozivikanwa :
Huremu hwepureti yedhisiki yakasimba = 2M
Radius yepulley yedhisiki yakasimba = R
Huremu hwemutoro = m
Akabvunzwa :
Huremu hwemutoro?
Mhinduro:
Verenga nguva yekusashanda kwepulley yedhisiki yakasimba, usati waisa chinhu chine huremu M pairi uye mushure mekunge chabatanidzwa nacho:
Nguva yekusaita basa 1:
Ini = ½ mr2 = ½ (2M)(R)2 = MR2
Nguva yekusaita basa 2:
Ini = ½ mr2 = ½ (2M + M)(R)2 = ½ (3M)(R)2 = 1,5 MR2
Nguva yesimba rinokonzerwa nemutoro uri papulley:
Kukurumidza kwekona kwepulley kwakafanana, chinhu chine huremu M chakabatanidzwa uye mushure mekunge chabatanidzwa.
Huremu hwemutoro = 1,5 kakawanda kupfuura huremu hwemutoro wekutanga
