a moto-cross rider is airborn after a jump. Each wheel of his bike has a rotational intertia of .760 kg m2, so the pair have twice that. He is moving at a speed of 15m/s, so the tires are spinning at 50 radians/s. He and the motorcycle have a rotational intertia of 35 kg m2. In the air he panics, and clamps down on the brake so the tire stops compared to the bike. What will his (bike and all) angular speed be after the wheel stops?