[填空题]
Calculate the moment of inertia of a bicycle wheel 66.7 cm in df9ci:ut ((xhx;9iz dd 0fv)lzdqbhynen 4,.* ru4ve2iameter. The rim and tire have a combined meyf v zh,2 dn)ue40q.b4l*rnvass of 1.25 kg. The mass of the hub can be ignored (why?). $kg \cdot m^2$