Amandla Kinetic abangaba

Omunye izici iyiphi uhlelo amandla ayo kinetic futhi ezingaba khona. Uma kukhona amandla F enza umzimba uphumule ngendlela yokuthi mithandazo waqalisa, kukhona umsebenzi ikhomishana da. Kulokhu, ukubaluleka kwengosi kuba kinetic namandla DT iba ephakeme, umsebenzi izimisele xaxa. Ngamanye amazwi, singakwazi ukubhala kwesibalo:

da = DT

Banikezwe indlela uDkt, siwela umzimba, nokuthuthukisa isivinini DV, sebenzisa yesibili umthetho Newton ngokuba amandla:

F = (DV / DT) * m

Iphuzu elibalulekile: umthetho ingasetshenziswa uma wamukelwe inertial inkomba uhlelo. Ukukhetha System kuthinta ukubaluleka amandla. Esikhathini ngamazwe SI uhlelo, amandla ulinganiswa Joules (J).

Ngakho, energy kinetic ka izinhlayiya noma imigwamanda, libhekene ezihambayo ngejubane V kanye m mass, yilesi:

T = ((V * V) * m) / 2

It lingahunyushwa baphetha ukuthi energy kinetic kunqunywa isivinini kanye mass ukuthi empeleni emele umsebenzi ezinyakazayo.

amandla Kinetic abangaba kungenzeka ukuchaza isimo umzimba. Uma kuqala, njengoba kuye kwashiwo, sihlobene ngokuqondile namaphuzu ukuhamba, lo somabhizinisi lisetshenziswa simiso uxhumana emizimbeni. Kinetic futhi amandla ezingaba ngokuvamile zibhekwa ngokwesibonelo, lapho amandla umzimba yokuxhuma, ukuzimela endleleni ukunyakaza. Kulesi simo kuphela izikhundla ezibalulekile kokuqala nokokugcina. Isenzakalo esidume kunazo zonke isibonelo - ukuxhumana okudonsa izinto. Kodwa uma kubalulekile futhi trajectory, amandla kuyinto dissipative (ngomshikisho).

Ngamagama alula, ikhono amandla ikhono lokwenza umsebenzi. Ngakho, le energy kubhekwe njengento umsebenzi edingekayo ukuze wenze umzimba ukuhambisa kusuka kwelinye iphuzu eya kwelinye. Lokho:

da = A * DR

Uma ukwephulwa amandla luchazwa ngegama DP, sithola:

da = - DP

Inani negative ubonisa ukuthi ukusebenza kungenxa ukwehla DP. Ukuze umsebenzi eyaziwa DP kungenzeka ukunquma hhayi kuphela iyunithi amandla F, kodwa futhi vector of isiqondiso sayo.

the kinetic namandla ushintsho njalo ephathelene ne-ezingaba khona. Lokhu kulula ukuzwisisa bona kubayini uma sikhumbula umthetho ukulondolozwa amandla uhlelo. Inani T + DP lapho umzimba idluliswa njalo uhlala okufanayo. Ngakho, izinguquko T kuthatha njalo indawo parallel ushintsho DP, babonakala agelezele nezinye, nokuguqulwa ngamunye.

Kusukela energy kinetic abangaba kuthiwa kuhlobene, sum yabo limelela amandla Imininingwane kohlelo. Mayelana amangqamuzana kuba namandla yangaphakathi futhi lubonakala ngaso sonke isikhathi, kuze kukhona okungenani ukunyakaza ezishisayo kanye nokuxhumana.

Nawubalisisako abakhethiwe Uhlaka reference, futhi noma nini ngokungenasizathu bathathwa kokuqala. Ngokufanayo, ukunquma ukubaluleka bezikhali amandla kungenzeka kuphela zone of action we ezinjena kuphoqa ukuthi uma umsebenzi wenziwa esizimele indlela ukunyakazisa nezinhlayiya noma emzimbeni. Ngo-physics, lawo mandla abizwa ngokuthi olandelanayo. Ngaso sonke isikhathi exhumene ne umthetho ukulondolozwa amandla ngokuphelele.

Iphuzu elithakazelisayo: esimweni lapho imiphumela bangaphandle ezincane noma offset, noma uhlelo ngaphansi cwaningo njalo ukulwela lesi isimo sakhe, lapho amandla alo ezingaba ivame zero. Ngokwesibonelo, ibhola aphonswe isifinyelele umkhawulo bamandla alo ezingaba endaweni phezulu trajectory, kodwa ngaleso okusheshayo efanayo iqala ukuhambisa phansi, nokuguqula amandla zanqwabelana ibe ukunyakaza ukuze umsebenzi owawenziwa. Kufanele futhi kuqashelwe ukuthi le engaba amandla kuhlale ukuxhumana zemizimba okungenani ezimbili: isibonelo, isibonelo nge ibhola ku ithinta yesisindo iplanethi. I energy kinetic ingabalwa ngayinye ngayinye yomzimba ezihambayo.