Umsebenzi Mechanical - akusiwona ukuthi ucabangani

Uyini umsebenzi, bayazi konke. Ngisho izingane abasebenza enkulisa - izingane. Nokho, ezivamile, ukumelwa yasekhaya akuyona into efanayo nomqondo umsebenzi mechanical physics. Ngokwesibonelo, indoda ime futhi uphethe isikhwama. Ngomqondo evamile, wenza umsebenzi, nokubamba wezimpahla. Nokho, kusukela iphuzu Ngenxa physics, lutho like angawenzanga. Yin'indaba?

Uma kukhona imibuzo enjalo, sekuyisikhathi kokukhumbula definition. Lapho izenzo amandla entweni, nangaphansi isenzo umzimba idluliswa ke umsebenzi lokukhanda. Lokhu inani lingu wakhona endleleni bahamba umzimba kanye amandla isicelo. Kusekhona wancika ngokwengeziwe isiqondiso isicelo force kanye isiqondiso ukunyakaza umzimba.

Ngakho, Sethule into ezifana umsebenzi lokukhanda. Physics ukuchaza ngokuthi umkhiqizo amandla futhi ukufuduka izikhathi cosine yenani engela ekhona jikelele icala therebetween. Njengoba isibonelo, cabanga Ezimweni ezimbalwa, ukuthi uzobazi lokho okushiwo kanjalo.

Lapho umsebenzi mechanical akwenziwa? Truck imele, thina baphokophelele, futhi akusho ukuhambisa. Amandla sisetshenziswa, futhi akukho ukunyakaza. Lisebenza ukusebenza ilingane no-zero. Futhi nakhu esinye isibonelo - unina athwala ingane ngesihlalo sabakhubazekile, kuleso simo umsebenzi kwenziwa, amandla sisetshenziswa, ukuthutha idluliswa. Umahluko kulokho izimo ezimbili kuchazwe khona ukufuduka. Futhi ngokunjalo, umsebenzi lo wenziwa (isibonelo ukuthutha), noma cha (isibonelo nge iloli).

Elinye icala - umfana ngebhayisekili futhi abahlakazekile ngokuthula kweqa phezu track, lo isinyathelo akusho ukusonta. Umsebenzi wenziwa? Cha, nakuba ukuhamba kukhona, kodwa akukho amandla kusetshenzisiwe, ukunyakaza Kwenziwa athutha.

Esinye isibonelo - inqola ihhashi qhutshwa, umshayeli ihlala kulo. kungaba Busebenza? Ukuhambisa khona, amandla isicelo kuyinto (isisindo somshayeli enza inqola), kodwa umsebenzi ngeke kwenziwe. I-engeli phakathi ohlangothini ukunyakaza futhi isiqondiso mandla 90 degrees, futhi i-cosine 90 ° zero.

Lezi zibonelo enze kube nokwenzeka ukuba baqonde ukuthi umsebenzi mechanical - akusiwona nje umkhiqizo yamanani amabili. Kufanele futhi acabangele indlela lezi zimiso ithunyelwa. Uma ohlangothini ukunyakaza futhi isiqondiso amandla ziyafana, umphumela uzokhombisa ukuthi unalo igciwane uma ohlangothini ukunyakaza yenzeka isiqondiso phoqelela uhlelo lokusebenza, umphumela alivumi (isibonelo, umsebenzi owawenziwa yilesi amandla kokukhuhlana uma kususwa umthwalo).

Ngaphezu kwalokho, kufanele ucabange ukuthi uthatha isinyathelo amandla emzimbeni kungaba nomphumela amabutho eziningana. Uma kunjalo, khona-ke umsebenzi wonke amabutho isetshenziswa umzimba uyalingana umsebenzi owenziwa amandla okuholela. Umsebenzi ulinganiswa Joules. Omunye joule umsebenzi elenza amandla omunye Newton lapho umzimba ihamba ngesikhathi imitha elilodwa.

Esibonelweni esingenhla singaba khona isiphetho esithakazelisayo kakhulu. Lapho sabuka umshayeli wenqola ku inqola, ke sinqume ukuthi ayenzi umsebenzi. Umsebenzi wenziwa indiza ovundlile, ngoba kulapho lapho kutholakala khona ukudluliswa senziwa. Kodwa isimo ihlukile uma sicabangela abahamba ngezinyawo.

Lapho uhamba, maphakathi gravity umuntu engahlali umile, isikhathi siya indiza mpo, futhi ngenxa yalokho, ingabe umsebenzi. Futhi njengoba ukunyakaza sibhekiswe amabutho ukuthatheka, bese umsebenzi kuyokwenzeka ngokumelene isiqondiso isinyathelo gravity. Vumela ukunyakaza encane, kodwa ukuhambahamba ngishaywe umoya umzimba kuyodingeka enze umsebenzi owengeziwe. Ngakho Gait efanele kunciphisa umsebenzi owengeziwe futhi kunciphisa ukukhathala.

Ngemva kokuhlaziya eziningana ezilula ekuphileni izimo, akhethiwe njengezibonelo, futhi usebenzisa ulwazi okungukuthi umsebenzi mechanical, saxoxa isimo esiyisisekelo zako, kanye lokuthi umsebenzi lo wenziwa nini futhi kanjani. Sinqume ukuthi umqondo ezifana umsebenzi ekhaya futhi physics has a uhlamvu ezahlukene. Futhi esungulwe ngokusebenzisa kwemithetho yemvelo Gait normal kubangela ukukhathala ezengeziwe.