A student sits on a rotating stool holding two 4 kg objects. When his arms are extended horizontally, the objects are 0.8 m from the axis of rotation, and he rotates with angular speed of 0.64 rad/sec. The moment of iner- tia of the student plus the stool is 4 kgm and is assumed to be constant. The student then pulls the objects horizontally to a radius 0.34 m from the rotation axis. DTO (a) (b) Calculate the final angular speed of the student. Answer in units of rad/s.