Buka umthombo wala Impekumpeku

[[File:Emilie_Chatelet_portrait_by_Latour.jpg|thumb|U-Émilie du Châtelet (1706-1749) ephethe ikhampasi elilodwa esandleni sakhe sokudla. Waba ngowokuqala ukushicilela ngobuhlobo bempekumpeku nomdiki ]] 

[[Umchazandalo|Kumchazandalo]], '''impekumpeku''' yento iwuhlobo [[Isidlakalasi|lwesidlakalasi]] leyonto enaso ngenxa yokuphekuzela noma umdiki wayo.

Kumchazandalo omdala, impekumpeku yento engampimpilizi [[Isisindo|enesisindo]] ''m'' ehamba [[iJubane|ngejubane]]  ''v'' ibalwa kanje <math display="inline"> \frac{1}{2}mv^2</math>.<ref name=R&H>Resnick, Robert and Halliday, David (1960) ''Physics'', Section 7-5, Wiley International Edition</ref> 

Impekumpeku yento ilingana nomkhwishizo, isiphoqi esiphindwe nomkhwebuko, odingekayo ukufinyelela isivinini esibaluliwe. Ngenxa yokuzuza lesidlakalasi lapho ikhawuleza, isisindo sizoqhubeka nokugcina impekumpeku ngaphandle uma ijubane laso liguquka. Inani elifanayo lomkhwishizo lwenziwa yinto lapho iphungula ijubane layo kufika ekugculeni kwayo.<ref name=R&H/>

Isimiso sokulinganisa impekumpeku sibizwa ngokuthi umjulu ''(joule)''.

Kumchachiso wobucakathi obukhethekile, isibalo <math display="inline"> \frac{1}{2}mv^2</math> siyicishelo elihle lempekumpeku kuphela lapho isivinini ''v'' singaphansi kwejubane lokukhanya.

==Amaphatho==