Amandla ekinetic esuntswana achazwa njenge K=12mv2. Ukwazi i-derivative yomsebenzi wamandla ddx[xn]=nxn−1 kusinika umphumo: dKdv=12m2v=mv=p. Le mpendulo ifanelekile ukuba siqwalasela imeko yakudala.
Ngokufanayo, Kutheni kukho i-1/2 kwifomula yamandla ekinetic? Ngamafutshane, isiqingatha samandla e-kinetic sivela Ukwandiswa kweTaylor yefomula yamandla ehambelanayo kuba ifomula 1/2mv2 luqikelelo lonxulumano olukhethekileyo. Isiqingatha kumandla e-kinetic sinokuchazwa njengento yokudibanisa kwi-work-energy theorem. … Kwi-RHS, isidibanisi se-v yi-v^2/2.
Yintoni amandla ekinetic afumana unxulumano k ½ mv2? Inkcazo ye-KE – KINETIC ENERGY-KE = 1/2 mv2. “Amandla akhoyo ngumzimba ngenxa yentshukumo yawo abizwa ngokuba ‘yiKinetic Energy’”. Amandla eKinetic axhomekeke kubunzima kunye nesantya somzimba. Ukuba isantya nguziro ngoko ke i-KE yomzimba iya kuba nguziro.
Yintoni umsebenzi owenziweyo? Umsebenzi unokubalwa nge-equation: Umsebenzi = Ukunyanzeliswa × Umgama. Iyunithi ye-SI yomsebenzi yijoule (J), okanye iNewton • imitha (N • m). Ijowuli enye ilingana nobungakanani bomsebenzi owenziweyo xa i-1 N yamandla ihambisa into kumgama we-1 m.
Okwesibini Ingaba i-T 2π √ m G ichanekile ngokomlinganiselo? Isisombululo: Kuhlalutyo lwe-dimensional, kufuneka sijonge i-LHS kunye ne-RHS ye-equation ngokwahlukeneyo kwaye sibone ukuba ziyalingana okanye azilingani. Ngoko, Inxaki ayichanekanga ngokomlinganiselo.
Ngaba kukho amandla ekinetic anganikwanga ngu-1 2mv 2?
Hayi, le nxaki yeyentshukumo yakudala kuphela. Ukuba sithathela ingqalelo iziphumo zerelativistic, kuthetha ukuba isantya somzimba sinokuthelekiswa nesantya sokukhanya, ngoko ke amandla ekinetic omzimba alingana nomahluko kumandla ahambelanayo kunye namandla okuphumla omzimba. , iFiziksi yintoni na. Yonke enye into yingxaki yomsebenzi wasekhaya.
ngoko Ngaba amandla ekinetic ahlala eyi-1 2mv 2? Ngenxa yokugcinwa kwamandla, amandla e-kinetic ento ngexesha t ilingana nomsebenzi owenziwe kuyo, Fs, apho s ngumgama ohanjiweyo. NgoMthetho we-2 kaNewton, F=ma kunye nefomula yokunyusa rhoqo, s=v(t=0)+1/2 e^2.
Ngaba i-1 2mv 2 MGH ichanekile ngokomlinganiselo? Omabini amacala ayafana ngokomlinganiselo, kungoko iiequations 12mv2 = mgh ichanekile ngokomlinganiselo.
Yintoni i-PE ifumana i-U MGH?
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Yintoni ubudlelwane phakathi kwe-KE kunye nomfutho? Kuba kukho ubudlelwane phakathi kwe-KE kunye nomfutho, I-KE iyanda ngokunyuka kwesantya. Ngokomzekelo, ukunyuka kwe-5% kwisantya kuya kubangela ukunyuka kwe-10% kumandla e-kinetic.
Yintoni i-mv2 R?
Amandla F ayimfuneko ukugcina umzimba ukwintshukumo efanayo yesangqa ichazwa njengamandla asembindini. Ubungakanani bamandla nguF = m v2 / r kwaye iqondiswe kwiziko lokujikeleza.
Kuthetha ukuthini umsebenzi owenziweyo? Umsebenzi owenziwe ngamandla unokuchazwa njengo imveliso yokufuduswa kwento kunye necandelo lamandla asetyenziswayo kwicala lokufuduswa kwento..
Wenziwa njani umsebenzi?
Umsebenzi wenziwe nanini na amandla ahambisa into emgama. Ungabala amandla adluliselweyo, okanye umsebenzi owenziweyo, ngokuphindaphinda amandla ngomgama ohanjiswe kwicala lamandla.
Uwubala njani umsebenzi owenziwe ngomzamo?
- Nikiwe: Umthwalo = 60 kgf. Ukususwa komthwalo = 20m. …
- Ukufumana: Umsebenzi owenziwe ngumzamo = ?
- Ifomula: Umsebenzi owenziwe ngomzamo = Amandla oMzamo × Umzamo wokufuduswa.
- Indlela yeNyathelo ngeNyathelo: Umsebenzi owenziwe ngomzamo ngumthamo womsebenzi owenziwe ngamandla anikiweyo ukususa into. …
- Impendulo: Umsebenzi owenziwe ngumzamo yi-18000 J.
Uyisebenzisa njani i-vu? v=u+at yinxaki yokuqala yesindululo. Kulo v=u+kwinxaki, u-u ngu Isantya sokuqala. v sisantya sokugqibela.
Kutheni i-T 2π √ lg? I-Pendulum – Apho i-mass m encanyathiselwe ekupheleni kwe-pendulum yobude l, iya kujikeleza kunye nexesha (T). Ichazwe ngu: T = 2π√(l/g), apho u-g isantya somxhuzulane. … Ubunzima bentlakohlaza – Apho ubunzima obuncanyathiselwe kwintlakohlaza enentlakohlaza engaguqukiyo k, buya kuguquguquka nethuba (T). Ichazwe ngu: T = 2π√(m/k).
Ingaba inxaki T 2π √ LG?
Ixesha le-pendulum elula linikezelwa ngu-T=2π√lg, apho i-i ubude be-pendulum kunye no-g kukunyuka ngenxa yomxhuzulane.
Ithini impendulo kwi-Ke 1 2mv 2? Iimpendulo kunye neempendulo
Inxaki KE=1/2mv^2 ithi amandla ekinetic alingana nesiqingatha sobunzima bento phinda-phinda isantya sento esiphindwe kabini.
Uyifumana njani i-V kwi-Ke 1 2mv 2?
Yintoni i-V 2 kwi-equation yamandla ekinetic? Kwifiziksi, amandla ekinetic ento ngamandla enawo ngenxa yentshukumo yawo.
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| Amandla eKinetic | |
|---|---|
| Iziphumo ezivela kwezinye izixa | E k = 12mv 2 E k =E t +E r |
Yintoni i-D kwi-W FD?
Kwintshukumo yendlela enye kumyinge omnye, oku kubonakaliswa ngendlela yonxaki njenge W = Fd cos θ, apho uW asebenza khona, F bubukhulu bamandla kwinkqubo, d ubungakanani bokufuduswa kwenkqubo, kwaye θ yi-engile phakathi kwevektha yamandla F kunye nevektha yokufuduswa d. …imizekelo yomsebenzi.
Yintoni ifomula yamandla? Amandla agcinwe entweni ngenxa yendawo kunye nokuphakama kwawo aziwa njengamandla anokwenzeka kwaye anikezelwa ngefomula: PE = mgh. Unit. Iyunithi ye-SI yamandla ziiJoules (J).