[填空题]
Calculate the moment of inertia of a bichdv++ kqucv- 4ycle wheel 66.7 cm in diametj1j6+kcu/i3ek,3opk; i)nis31t zn 6 m nmizher. The rim and tire have a comb zk)z/cjp3ntn+k , oi1hj;61i3nk e6mi3muisined mass of 1.25 kg. The mass of the hub can be ignored (why?). $kg \cdot m^2$