Itroli yetreyini
Ubude be-0.9m, busetyenziselwa uvavanyo lweqela labafundi kwi-physics yamabanga aphakamileyo, njengokuqinisekisa nokuvavanya umgaqo we-Newton's Low, the kinetic energy theorem, theorem yesantya njl.
Bhala umyalezo wakho apha uze uyithumele kuthi