Amandla Ajwayelekile

Amandla ajwayelekile amandla asebenza ezintweni ezithintanayo, lapho isiqondiso samandla siqonde khona endaweni yokuxhumana. Uphawu lwawo ngu-N no- uhlelo lwamazwe ngamazwe lwamayunithi yi-kg m/s² noma uNewton.

Phoqa u-N endaweni eyisicaba

U-N ungamandla asetshenziswa yiphansi emshayweni, u-N' ungamandla asetshenziswa yiphansi emshayweni. u-w ungu amandla adonsela phansi ukusebenza kubhlokhi noma isisindo sebhlokhi. U-N no-N' kuyizenzo zokusabela, kuyilapho u-N no-w bengebona. amandla okusabela esenzweni.

Uma ibhloko liphumule noma lingahambi ngendlela eqondile, ubukhulu bamandla u-N bungabalwa kusetshenziswa umthetho wokuqala kaNewton.

ΣF_y = 0

N – w = 0

N = w

Uma ibhloko licindezelwa phansi ngamandla F njengoba kusesithombeni ohlangothini, khona-ke ubukhulu bamandla N buyi:

ΣF_y = 0

N – w – F = 0

N = w + F

Amandla ajwayelekile endizeni ethambekele

U-N no-N' banamandla okusabela kwesenzo. U-N ungamandla avamile asebenza ebhulokini kanti u-N' ungamandla avamile asebenza endizeni ethambekele. U-W uyingxenye eqondile yamandla adonsela phansi (w). Amandla adonsela phansi (w) asebenza ebhulokini. Ubukhulu bamandla avamile bungu

ΣF_y = 0

N – w_y = 0

N = w_y = w cos theta

Ireferensi