[填空题]
Calculate the moment of inertiw m yw td4p;7aqmk919ia of a bicycle wheel 66.7 cm il/ w1/kbouev6w0h +ng +jw/y1 inpxx/ n diameter. The rim and t y +i j6b1/wuwhov0+ wx/k1/pgx /elnnire have a combined mass of 1.25 kg. The mass of the hub can be ignored (why?). $kg \cdot m^2$