[填空题]
Calculate the moment -v 52 -:/ntclvxx(cd2xrtz tazoq 0zmf z o;ko-xo6.d.l m6p)of inertia of a bicycle wheel 66.7 cm in diameter. The rim and tire have a combined mass of 1.25 kg. The mass of the hubzo6- x q;zk.o l6fm)dpzomo .0 can be ignored (why?). $kg \cdot m^2$