Umthetho yegolide Mechanics.

Ngisho nasezikhathini zasendulo, lapho lusetshenziswa izindlela ezilula (block isigwedlo esangweni nokunye.), Isici enhle yale mishini kuthiwa litholakele. Kwavela ukuthi zonke ukunyakaza e izindlela ezilula abe nobuhlobo ezithile namabutho ukuthi ukuthuthukisa imoto. Kumele kuqashelwe ukuthi le nhlangano imikhawulo 2 indlela elula lapho amandla kuhlale lobudlelwano amathonya zisetshenziswa lezi kuphelile.

Amandla, kuthinte kwesokudla ingalo isigwedlo kuyizikhathi n lincane amandla osithathayo isinyathelo ehlombe langakwesokunxele. Ngakho, ukuhamba sangakwesokudla (s2) izikhathi n mkhulu kunezinhliziyo ukuhamba ingalo ngakwesokunxele (s1).

Ngokwesibonelo, uma ukuze silondoloze isigwedlo ibhalansi, ubukhulu amandla F2 kumele kube n ezincane izikhathi kuka ubukhulu bale F1 amandla. Kulokhu, lapho isigwedlo ijikeleziswa, ukujikeleza yesibili ekupheleni s2 kuyoba n izikhathi kunangendlela ukunyakaza s1 sokuphela kuqala. Uma lo mshini kuyinto kabili, bese empeleni okufanayo phakathi kwamabutho ukuthi anamekwe izindophi ukuthi ukulimaza kuwo womabili iyunithi futhi uyigcine esimweni yakhoibrium, nokunyakaza intambo iphela uma iyunithi uzungeza. Njengoba ukubaluleka kwaleli lungiselelo ayikwazi overstated, kuthiwa kumnandi, "umthetho osemqoka we Mechanics".

Ukusebenzisa notation ukuthi ifakwe, golden umthetho Mechanics kungenziwa esashiwo ifomula:

s1 / s2 = F2 / F1

noma s1 * F1 = s2 * F2.

Ngemva kwalokho, kwaba khona inkinga kancane kancane izinhlobo ukunyakaza futhi ubunjalo imishini eyayisetshenziswa Mechanics. Kwenzeka isimanga ukuthi umthetho osemqoka we Mechanics musa njalo azigcina ngokuhlathulula ukusebenza kwawo ngendlela elula. Nokho, lapho kuba nzima umshini izinhlobo futhi izinhlobo ukunyakaza, kokubili kwenzekani nokuba yinkimbinkimbi umthetho osemqoka we Mechanics. Ngakho, ngaphansi emacaleni yayo umthelela banyukubala nzima. Kufanele kuqashelwe ukuthi i-Wegolide ka Mechanics yaba isisekelo sezinguqulo ukuvela imibono ehlukene mayelana namandla kanye nomsebenzi. Kulokhu, lesi simiso ngowokuqala, ekwakhiweni elula yomthetho ukulondolozwa amandla, ukuhlobana siqhubeke zonke zemvelo.

Ukusetshenziswa "umthetho osemqoka"

Lo mthetho namanje sisebenza kuphela endabeni ezinyakazayo umfaniswano imishini elula (noma nge ukushesha kancane). Ngokwesibonelo, uma ijikelezwe block double, kukhona ukunyakaza imikhawulo izindophi phezu amabanga s1 futhi s2, okuyinto nilimaza ku amabhlogo radii R1 R2 futhi kuvikelwe ndawonye. Lezi ziqhelelene wakhona radii R1 / R2 = s1 / s2.

Ngakho, ukuze umthetho osemqoka iye esiphuthumayo block okumbaxambili, kudingeka ukuhlangabezana nemibandela ethile elandelayo: F1 / F2 = R2 / R1.

Kulokhu, kwenzeka yakhoibrium amabutho F1 futhi F2. Ngakho-ke, le mishini yayithatha kufanele enze, noma ukunyakaza iyunifomu, noma uhlale nje uphumule. Nokho, ukuze uqale block double, ukuba aphume ukulinganisela. Kuze kube yimanje, yimaphi amandla, isibonelo, i-F1, ufuna ukwengeza f amandla. Le nhlangano yenkolo yokulwela okwenzeka emzimbeni, itawunonophiswa.

lwemali kazwelonke

Lwemali kazwelonke iyunithi yemali, okuyinto Likhipha National Bank noma uhulumeni ngenhloso ukusetshenziswa kwaso endaweni ukuthi State noma kwelinye izwe. Isetshenziselwa kokubili exchange kwezomnotho okwenzeka emhlabeni wonke, kanye nakwezinye izindawo, okuncike inkokhelo yemali.

Iqoqo kusukela ukudayiswa lwemali

Umbuzo anikezelwe ukwethulwa iqoqo lolu hlobo umsebenzi njengoba ukudayiswa izimali zakwamanye amazwe ngokheshe, lo resonance ukuthi kunoma imuphi umphakathi, ngaphandle ukuthi ungakwazi ukuqhathanisa kanye ukhetho eliphakeme nokuqala ukusebenza iphalamende elisanda kuqokwa. Banikezwe inqwaba yabantu ezahlukene ochwepheshe ngenhlonipho ukuthi lokhu kwakwenqatshelwe, National Bank ubophekile ukuba ngenkuthalo afeze umkhankaso ulwazi phakathi labantu isimo. Ngakho, uyobe ayihlathulula ebantwini imithetho ethile futhi imiqondo eziyosisiza esikhathini esizayo zonke lomphakathi.