Zvemukati
Iyoyunifomu rectilinear inofamba (MRU) Iko kufamba kunoitwa munzira yakatwasuka, nekumhanyisa nguva (ine hukuru hwese uye negwara).
Nzira inonzi nzira inotsanangurwa nechinhu kana ichifamba kubva pane imwe poindi ichienda pane imwe. Fizikisi inoronga mafambiro nema trajectory avo:
Rectilinear. Izvo zvinoitwa munzira imwe chete.
- Yunifomu. Iko kumhanya kunogara kuripo, kumhanyisa kwacho zero.
- Inokurumidza. Iyo yekumhanyisa inogara ichiitika, ndiko kuti kumhanyisa kunowedzera kana kuderera nenzira inogara iripo.
Yakakombama.
- Pendular. Iko kufamba kwekushambadzira, senge kwependulum.
- Denderedzwa. Iine axis yekutenderera uye yenguva dzose nharaunda. Nzira yekufamba inotsanangura denderedzwa.
- Kufananidza. Nzira yechinhu inokwevera parabola.
Kuti kufamba kune yunifomu zvinoreva kuti kumhanya kwayo kunogara kuripo, kumhanya kwayo hakushanduke. Kumhanyisa zero.
Speed ndiyo huwandu hunotsanangurwa sedanho rakafambiswa muchikamu chenguva. Semuenzaniso: makiromita makumi mana paawa zvinoreva kuti nhare inofamba makiromita makumi mana muawa (40 km / h).
Kuti uverenge chinhambwe chakafambiswa nechinhu chine yunifomu rectilinear inofamba, inotevera data inoshandiswa: kumhanya uye nguva.
Kana iwe uchiziva daro uye nekumhanyisa asi iwe uchida kuverenga iyo nguva ichatora, paradzanisa chinhambwe nekumhanya.
d / v = t50 km / 100 km / h = 1/2 h (0.5 h)
Iwe unogona zvakare kuziva iyo yekumhanyisa kana iwe uine iyo yekure uye nguva data:
D / t = V50 km / h = 100 km / h
Mune mamwe mazwi, hunhu hweyunifomu rectilinear inofamba (MRU) ndeiyi:
- Yakarurama nzira
- Nguva dzose kumhanya (yunifomu)
- Zero kumhanyisa
- Kugara uchitungamira
- Onawo: Yemahara kudonha uye kutwasuka kukanda
Mienzaniso yunifomu rectilinear inofamba
- Chitima chinobva kuParis nenguva dza6 mangwanani uye chinosvika kuLyon na8 am. Nzira yayo iri munzira yakatwasuka. Iyo nzvimbo iri pakati peGare de Paris neGare deLyon is 400 km. Chitima chinogara chichienda neicho kumhanya, pasina kumhanyisa kana kubhureki kusvika chasvika kwachiri kuenda. Chitima chiri kufamba zvakadii?
Kure: 400 km
Mamiriro ekunze: Maawa masere - maawa matanhatu = maawa maviri
400 km / 2 hrs = 200 km / h
Pindura: chitima chinoenda pamakiromita mazana maviri paawa.
- Iyo nzira kubva kumba kwangu kuenda kuimba yeshamwari yangu yakatwasuka. Pese pandinoishanyira, ndinotyaira mota yangu nespidhi yemakiromita makumi maviri paawa, pasina kumhanyisa kana kudzora kudzamara ndasvika. Zvinonditorera hafu yeawa kuti ndisvike ikoko.
Imba yeshamwari yangu iri kure zvakadii?
Speed: 20 km / h
Mamiriro ekunze: 1/2 h
20 km / h / 1/2 h = 10 km
Pindura: Imba yeshamwari yangu iri makiromita gumi kubva.
- Juan anoendesa mapepanhau munharaunda yake. Sezvo iye achiziva kero nemusoro, anokwira bhasikoro rake uye anoita nzira yake asingamiri paanosvika pane imwe neimwe imba, panzvimbo pezvo iye anokanda mapepanhau kubva pabhasikoro. Nzira yaJuan iri munzira imwe chete, yakatwasuka, yemakiromita maviri. Inoenda nekumhanya kwemakiromita gumi paawa. Juan anofanira kutanga rwendo uye odzoka achidzika nemugwagwa iwoyo nekumhanya kumwe chete. Kana Juan akasiya izvozvi, zvinotora nguva yakareba sei kuti adzoke?
Mune ino kesi pane maviri yunifomu rectilinear mafambiro: iyo iri kuenda uye imwe kumashure.
Speed: 10 km / h
Kure: 2 km
2 km / 10 km / h = 0.2 h = maminetsi gumi nemaviri
Uku kuverenga ndekwekumwe kwekushanya.
Maminitsi gumi nemaviri x 2 (rwendo rwokudzoka) = maminetsi makumi maviri nemana
Pindura: Juan achatora maminetsi makumi maviri nemana kuti adzoke.
- Mangwanani ega ega ini ndinomhanya makiromita gumi ndakananga kumahombekombe, uye zvinonditorera 1 awa. Ini ndoda kuvandudza kumhanya kwangu kuti nditambe mujaho nemukwikwidzi wangu, uyo anogona kumhanya pamakiromita gumi nemaviri paawa. Zvinotora nguva yakareba sei kuti ndiite yangu yenguva dzose kukwira kuti ndimhanye kumhanya nemukwikwidzi wangu?
Speed: 12 km / h
Kure: 10 km
10 km / 12 km / h = 0.83 h = 50 maminetsi
Pindura: Ini ndinofanirwa kupedzisa kosi mumaminitsi makumi mashanu kuti ndikurumidze kukwikwidza neni.
- Enderera ne: Verenga Kuwedzera
