An ice skater has a moment of inertia of 5.0 kg · m2when her arms are outstretched,
An ice skater has a moment of inertia of 5.0 kg · m2when her arms are outstretched, and at this time she is spinning at 3.0 rev/s. if she pulls in her arms and decreases her moment of inertia to 2.0 kg · m2, how fast will she be spinning?