dont use AI

4. A 4D-kg diver in a ll layout position, with a total body radius of gyration with respect to her transverse principal axis equal to 0.65 [13, leaves a springboard with an angular velocity of 8 radfs. What is the diver's angular velocity when she assumes a tuck position, reducing her radius of gyration to 0.35 m? S. If the centripetal force exerted on a swinging tennis racket by a player's hand is 70 N, how much reaction force is exerted on the player by the racket