The rotational inertia for a diver in a pike position is about 15.5 kg·m2; it is only 8.0 kg·m2 in a tuck position.
(a) If the diver gives himself an initial angular momentum of 106 kg·m2 /s as he jumps off the board, how many turns can he make when jumping off a 10.0-m platform
(a)

(b)

In a tuck position?
(b) How many in a pike position? [Gravity exerts no torque on the person as he falls; assume he is rotating throughout the 10.0-m dive.]