[填空题]
Calculate the moment of inertia of a bicycle wheel*kaosu38b1 6u*vt2 cn r5 j8(aue jeyai86vp /jxa( x 4jtfv3b 66.7 cm in diameter. The rim and tire have a combined mass of 1.25 kg. The mass(vf4/jaxp 6 ji vt38xb of the hub can be ignored (why?). $kg \cdot m^2$