Ifomula of "Isantya, ixesha, umgama." Indlela yokusombulula le ngxaki?

Vumela isikolo physics isifundo ijikwe ibe umdlalo imincili! Kweli nqaku, Heroine wethu iya kuba formula "Isantya, ixesha, umgama." Hlalutya ngokwahlukeneyo parameter nganye, esilishumayelayo eminye imizekelo umdla.

speed

Yintoni i "ngokukhawuleza"? Uyakwazi ukubona indlela imoto enye ebaleka kakhulu, omnye a kancinane; umntu ethetha ngokukhawuleza, omnye - hayi ungxamile. Beebhayisikile kwakhona ukuhamba ngesantya ezahlukeneyo. Ewe! Zinga. Kuthetha ukuthini loo nto? Kakade ke, umgama ukuba umntu. Ndamgxotha emotweni ethile ixesha elithile. Zicingele ukuba kwisantya umntu 5 km / h. Eso iyure-1, yena kwiikhilomitha ezi-5.

Indlela yokufumana isantya, ixesha, umgama? Masiqalise ngesantya. Khangela ngokusondeleyo, yintoni ulinganiswa? Ngokuqhelekileyo, km / h m / s. Kukho nezinye iiyunithi, umz, km / s (space), mm / h (ngamachiza ezinto). Nikelani ingqalelo koko umi phambi uphawu "/" nasemva. Okokuqala, lithetha "esongwayo", into ethetha ukuba inani elingezantsi - mm, km, m, kwinani elingaphezulu - h, s, imiz. Okwesibini, kubonakala oku embhoxo formula, akunjalo? Khilomitha, iimitha - umgama, ubude, kwaye ilixa, okwesibini, imizuzu - ixesha. kakhulu ukuba kwincam. Kwaba lula ukuba ukukhumbula ukufumana indlela isantya, khangela akukho unit (km / h, m / s). Amagama kuphela:

v = S / t = km / h.

ixesha

Yintoni na ixesha? Kakade ke, kuxhomekeke kwisantya. Umzekelo, ukuba silinde embundwini wendlu unina nomntakwabo omdala. Baya kuhamba ngaphandle evenkileni. UMzalwana yafika ngaphambili kakhulu. UMama kwafuneka alinde malunga 5 imizuzu Kutheni? Ngenxa yokuba ngeqondo eyahlukileyo. Kakade ke, ukuze ngokukhawuleza oya kuyo, ngaba ufuna ukongeza isantya ekukhawuleziseni ukuya ukubeka uxinzelelo kwi "igesi 'emotweni nzima, ukuba saa phezu ngebhayisekile. Kuphela xa rush, lumka nephaphileyo ukuze angqubeke umntu okanye into ethile.

Indlela ukufumana ixesha? Thina nodibaniso olunesantya tip - km / h. Nendlela ukuba namaxesha? Okokuqala, ixesha ulinganiswa imizuzu, imizuzwana, iiyure. Formula 'isantya, ixesha, umgama "utshintshwa ngolu hlobo lulandelayo:

ixesha t [qh., imiz., hr] = S [m, mm, km] / V [m / s, mm / min, km / h].

Ukuba ukuguqula iqhezu yonke imithetho yemathematika, yayinqamlela ukude parameter (ubude), oko kuhlala yesibini, umzuzu okanye iyure.

Distance, ubude indlela siwela

Apha kuya kuba lula ukuyisebenzisa, okuba, abaqhubi kuba odometer uhambo emotweni. Baya kuba nako ukujonga indlela leekhilomitha ezihanjiweyo abaninzi, kodwa yazi isantya. Kodwa njengoko intshukumo obungalinganiyo, zibekele tonoe ngesantya alusebenzi, ngaphandle kokuba sithatha ngesantya.

Formula umendo (distance) - imveliso Velocity kunye nexesha. Kakade ke, le ndlela yeyona lula kwaye afikelelekayo - lixesha. Iwashi konke konke. Isantya ngeenyawo ayikho ngokungqongqo 5 km / h, kunye nama-. Ngoko ke, kukho Inokuba kukhona impazamo. Xa kunjalo, u Kungcono uthathe imephu yommandla. Phawula ngezinga. Kufuneka kucaciswe zingaphi km okanye iimitha 1 cm. Namathelisa umphathi uze ulinganise ubude. Ngokomzekelo, ukusuka ekhaya ukuya kwindlela ngqo umculo yesikolo. Ingxenye A ubuyile-5 cm kwisikali lubonise 1 cm = 200 m kuthetha ukuba umgama yokwenene - .. 200 * 5 = 1000 m = 1 km. Kangakanani ukuba bahambe umgama? Kangangesiqingatha seyure? Nngokobuchwepheshe ukuthetha, 30 = 0.5 min h = (1/2) iiyure. Ukuba ukusombulula ingxaki, kuvela ukuba uhambe ngesantya esingu 2 km / h. Soloko iya kunceda ukusombulula ingxaki kwifomula 'isantya, ixesha, umgama. "

Ungaphoswa!

Ndikucebisa ukuba miss iingongoma ezibalulekileyo kakhulu. Xa ngaba unikwa umsebenzi, anikel 'ingqalelo koko units banikwa parameters. Ingxaki Umbhali uyakwazi bakopele. Ubhala kungabekwa:

Le ndoda ngemoto ecaleni kwi ibhayisekile kweekhilomitha ezi-2 nemizuzu engama-15. Musa ukusondela ngokukhawuleza ukusombulula ingxaki usebenzisa ifomula, kungenjalo ufumana nto, wena ke utitshala uya kuba ukubala. Khumbula ukuba kunjalo akunakwenzeka ukwenza njalo: 2 km / min 15. Ufumana yokukala km / m, hayi km / h. Kufuneka ukufezekisa yokugqibela. Cwangcisa le ngcaciso ewotshini. Indlela ukukwenza oko? imizuzu eli-15 -. Kuyinto 1/4 iyure okanye iiyure 0.25 ungakwazi ngoku ngokukhuselekileyo 2km / 0,25ch = 8 km / h. Ngoku ingxaki sele isonjululwe ngokuchanekileyo.

Oko Kulula ukuba ukukhumbula ifomyula 'isantya, ixesha, umgama. " ulandele nje yonke imithetho yemathematika, ahlawule ingqalelo liyunithi ngxaki. Ukuba kukho kujonge izinto, ezifana kulo mzekelo ungentla nje ngentla, ngoko nangoko ukuguqulela ngeeyunithi SI, njengoko kulindelekile.