[填空题]
Calculate the moment of inertia of a bicycle wheel 66.7 cm inz)5 vee :1ytjl diam-jppdu v,0: e hwi: pufk0z1ccet48i5 ( uhe5beter. The rim and tire haved5u-kfb10hciw:4iu: t80j czep,(h pv5ee pu a combined mass of 1.25 kg. The mass of the hub can be ignored (why?). $kg \cdot m^2$