[填空题]
Calculate the moment of inertia of6(c v/vt,zcb/5jvug q a bicycle wheel 66.7 cm in diamixlha6ub lm d,:yn)bw ;0, z9ieter. The rim and tire have a combined mass of 1.25 kg. Th bmaz ;b:i)w6n0lx9 dyil,h,ue mass of the hub can be ignored (why?). $kg \cdot m^2$