Pakarepo kumhanya: pfungwa, dzemaitirwe wevacheche, kunenge awana

Speed mu Physics kunoreva kufambisa nokumhanya kunoita chinhu (zvinhu pfungwa) ari nzvimbo. kukosha Izvi zvinogona kuva zvakasiyana: munhu Linear, chisina kutsetseka, unosvikirwa, nzvimbo uye kunyange superluminal. Pakati zvose zvipenyu zvose zviripo anopinda uye nguva imwe velocity pamwe. Imhandoi kukosha, chii chacho payakavakirwa uye zvii zvinodiwa kuverenga nayo - rinongova uye ichakurukurwa munyaya yedu.

Pakarepo kumhanya: musimboti pfungwa

Kuti mashoko kuziva sei kumhanya kwebasa chinhu nenzira yakarurama mutsetse, anozivikanwa kunyange puraimari vadzidzi: daro zvakakwana akafamba yakakamurwa panguva yave yakawandisa kufamba kwakadaro. Zvisinei, zvinokosha kuyeuka kuti mugumisiro vakawana nenzira iyi, anopa chiratidzo avhareji ukoshi. Kana chinhu ichifamba vanoiswa, kuti mune dzimwe nzvimbo yayo kufamba nzira nokukurumidza kunogona siyana yekudyidzana. Naizvozvo dzimwe nguva kunodiwa, dzakadai nguva imwe velocity ukoshi. Rinopa rairatidza kumhanya kufamba ane zvinhu pfungwa pamamiriro motokari.

Nguva imwe nokukurumidza kukarukureta fomura

parameter Izvi wakaenzana nomuganhu (akaratidza muganhu, rakapfupikiswa nevaNefirimu) sangano (musiyano pakati Coordinates) kusvika nguva penguva umo kuchinja yakaitika, akapa kuti nguva ruchigona kusvika razero. Tsanangudzo iyi inogona kunyorwa sezvo zvinotevera payakavakirwa:

v = Δs / Δt kana Δt → 0 kana kuti v = nevaNefirimu _{Δt → 0} (Δs / Δt)

Ona kuti nguva imwe velocity ndiye vector uwandu. Kana inofamba iri yakarurama mutsetse, izvozvo anochinja chete nokukura uye mirayiridzo kuramba kugara. Zvikasadaro, asi nguva imwe velocity Vector akatungamirira tangentially panyaya nzira kufamba mu pfungwa neimwe vaiona. Chii pfungwa ane chakarurama ichi? Pakarepo nokukurumidza zvinoita kuti tizive chii chichaita kuti kufamba chinhu chete chairema nguva, kana kufungwa kubva nguva iye kunoita noruvara nenzira yakarurama mutsetse.

Tips

Kana dzakafanana inofamba pakati hapana dambudziko, iwe chete kuziva nhamba chinhambo kusvika nguva pazviri pasi kukunda. Muchiitiko chino, paavhareji uye nguva imwe velocity ane muviri vakaenzana. Kana inofamba hakusi kugara, zvino ichi nyaya kuziva kumhanyisa uye kuziva nguva imwe velocity chero nguva. Kana mira kufamba vanofanira kufunga simba pamusoro rinokweva kumhanyisa. Nguva imwe motokari nokukurumidza inogona tsunga nokuda radar kana speedometer. Zvinofanira kurangarirwa kuti sangano iri dzimwe zvikamu mugwagwa anogona kutora kunaka ukoshi. Kuti tiwane kumhanyisa, unogona kushandisa accelerometer kuti chero kufamba nerevane kushandisa nzira v = v0 + munhu • t. Kana kufamba rinotanga kubva zororo, ipapo v0 = 0. Masvomhu vanofanira kufunga chokwadi chokuti muviri (mwero kuderera) braking kumhanyisa kukosha chichava chiratidzo "kubvisa". Kana chinhu chinoita akasununguka kuwa, asi nguva imwe kumhanya ayo misha rinowanikwa ne nzira v = d • t. Panyaya iyi, kutanga velocity kuri kuenzana 0.