A bicycle has wheels of radius 0.330 m. Each wheel has a rotational inertia of 0.0800 kg⋅m² about its axle. The total mass of the bicycle including the wheels and the rider is 67.0 kg. When coasting at constant speed, what fraction of the total kinetic energy of the bicycle (including rider) is the rotational kinetic energy of the wheels? How can you relate rotational kinetic energy with angular velocity?