[填空题]
Calculate the moment;*x az.mv),vgewdh pii(e 8*b of inertia of a bicycle wheel 66.7a86cn (c k;t/eknno 1a cm in diameter. The rim and tire have a combined mass of 1.25 kg. The mass of the hub can be ign6n8noan (a;c ktke c/1ored (why?). $kg \cdot m^2$