Zamkati
Pulogalamu yayunifolomu rectilinear zoyenda (MRU) Ndiko kuyenda komwe kumachitika molunjika, mwachangu nthawi zonse (ndimphamvu zonse komanso kuwongolera).
Njira imatchedwa njira yomwe chinthu chimalongosolera poyenda kuchoka pamfundo ina kupita pa ina. Fiziki imasanja mayendedwe awo:
Zowonongeka. Zimachitika mbali imodzi yokha.
- Yunifolomu. Kuthamanga kwake kumakhala kosalekeza, kuthamanga kwake ndi zero.
- Inapita patsogolo. Kuthamangitsidwa kosalekeza, ndiye kuti kuthamanga kumachuluka kapena kumachepa mosalekeza.
Yokhota.
- Zolemba. Ndiko kusuntha kosuntha, monga kwa pendulum.
- Zozungulira. Ndi olamulira a kasinthasintha ndi utali wozungulira zonse. Njira yoyenda imafotokozera zozungulira.
- Zofananira. Njira ya chinthuyo imakoka parabola.
Kuti kayendedwe kali kofananira kumatanthauza kuti kuthamanga kwake kumakhala kosasintha, kuthamanga kwake sikusintha. Kuthamanga ndi zero.
Kuthamanga ndi kuchuluka komwe kumatanthauzidwa ngati mtunda woyenda mu unit of time. Mwachitsanzo: makilomita 40 paola amatanthauza kuti woyenda amayenda makilomita 40 mu ola limodzi (40 km / h).
Kuwerengetsa mtunda woyenda ndi chinthu chokhala ndi mayunifolomu oyenda mozungulira, zotsatirazi zimagwiritsidwa ntchito: kuthamanga ndi nthawi.
Ngati mukudziwa mtunda ndi liwiro koma mukufuna kuwerengera nthawi yomwe itenge, gawani mtundawo ndi liwiro:
d / v = t50 km / 100 km / h = 1/2 h (0,5 h)
Muthanso kudziwa kuthamanga ngati muli ndi mtunda ndi nthawi:
D / t = V50 km / ½ h = 100 km / h
Mwanjira ina, mawonekedwe a mayunifolomu oyenda mozungulira (MRU) ndi awa:
- Njira yowongoka
- Zonse liwiro (yunifolomu)
- Zero mathamangitsidwe
- Malangizo okhazikika
- Onaninso: Kugwa kwaulere ndi kuponya mozungulira
Zitsanzo za mayendedwe amtundu wa yunifolomu
- Sitima imanyamuka ku Paris nthawi ya 6 koloko m'mawa ndikufika ku Lyon nthawi ya 8 m'mawa. Njira yake ili molunjika. Mtunda pakati pa Gare de Paris ndi Gare de Lyon ndi 400 km. Sitimayi nthawi zonse imayenda mothamanga mofanana, popanda kufulumira kapena kuswa mabuleki mpaka ikafika komwe imafika. Kodi sitimayi ikuyenda mwachangu bwanji?
Kutalikirana: 400 km
Nyengo: Maola 8 - maola 6 = maola awiri
400 km / 2 hrs = 200 km / h
Yankho: sitima imayenda makilomita 200 pa ola limodzi.
- Njira yochokera kunyumba kwanga kupita kunyumba ya mzanga ndiyolunjika. Nthawi zonse ndikapita kukayendera, ndimayendetsa galimoto yanga pa liwiro la makilomita 20 pa ola, osathamanga kapena kutsika mpaka ndikafike. Zimanditengera theka la ola kuti ndikafike kumeneko.
Kodi nyumba ya mzanga ili patali bwanji?
Kuthamanga: 20 km / h
Nyengo: 1/2 h
20 km / h / 1/2 h = 10 km
Yankho: Nyumba ya mzanga ili pamtunda wamakilomita khumi.
- Juan amapereka nyuzipepala m'dera lake. Monga momwe amadziwira ma adilesi pamtima, akukwera njinga yake ndikupita osayima akafika nyumba iliyonse, m'malo mwake amaponya nyuzipepala kuchokera panjinga. Njira ya Juan ili mumsewu umodzi wowongoka, wamakilomita awiri. Imayenda pa liwiro la makilomita 10 pa ola limodzi. Juan ayenera kuyamba ulendowu ndikubwerera mumsewu womwewo mwachangu chomwecho. Ngati Juan achoka pano, zitenga nthawi yayitali kuti abwerere?
Poterepa pali mayendedwe awiri amtundu wa yunifolomu: imodzi ikupita ndi inayo kumbuyo.
Kuthamanga: 10 km / h
Kutalikirana: 2 km
2 km / 10 km / h = 0.2 h = mphindi 12
Kuwerengetsa uku ndi kwaulendo umodzi wokha.
Mphindi 12 x 2 (ulendo wozungulira) = mphindi 24
Yankho: Juan atenga mphindi 24 kuti abwerere.
- M'mawa uliwonse ndimathamanga makilomita khumi molunjika pagombe, ndipo zimanditengera ola limodzi. Ndikufuna kukonza liwiro langa kuti ndimenyane ndi mpikisano wanga, yemwe amatha kuthamanga pa kilomita 12 pa ola limodzi. Zimanditengera nthawi yayitali bwanji kuti ndichite zomwe ndimakonda kukwera mwachangu limodzi ndi mpikisano wanga?
Kuthamanga: 12 km / h
Kutalikirana: 10 km
10 km / 12 km / h = 0.83 h = mphindi 50
Yankho: Ndiyenera kumaliza maphunziro mu mphindi 50 kuti ndikhale wothamanga ngati wopikisana naye.
- Pitirizani ndi: Kuwerengera Kuthamanga
