Amandla avamile amandla asebenza ezintweni ezithintanayo, lapho isiqondiso samandla siqonde ngqo endizeni yokuxhumana. Uphawu lwawo yi-N kanti uhlelo lwamazwe ngamazwe lwamayunithi yi-kg m/s 2 noma i-Newton.
Phoqa u-N endaweni eyisicaba
U-N ungamandla asetshenziswa yiphansi emshayweni, u-N' ungamandla asetshenziswa ngumshayweni ophansi. u-w ungamandla adonsela phansi asebenza emshayweni noma isisindo somshayweni. U-N no-N' bangamandla okusabela kwesenzo, kuyilapho u-N no-w bengewona amandla okusabela kwesenzo.
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
