1. a. If a constant 25 N of force is applied tangent to a 4.0 kg lazy Susan (disk, with 30 cm diameter) on a dining room table, how fast is it rotating (angular velocity) after 5.0 seconds, in radians per second? 

 

b. After 5.0 s, no more force is applied, but a salt shaker that was in the very middle of the lazy susan (where it did not contribute to the moment of inertia of the disk) slides to the outside of the disk, increasing the moment of inertia of the lazy susan by 15%. What is the new, lower angular velocity of the lazy susan after the salt slides and increases ?