[填空题]
Calculate the moment of inertia of a bicycle whl2k y;f rojob ;s4h91qeel 66.7 cm in diameter. Tqujnbvuf4awae/; l;62d xm ,6he rim and tire have a combined mass of 1.25 kg. The mass of the hub can be ignored (why?f4l62q u n a,m/vw; jdua;e6xb). $kg \cdot m^2$