A child having a mass of 53.3 kg sits on the edge of a merry-go-round having a radius of 2.1 m and moment of inertia 188.042 kg m^2. The merry-go-round rotates with the angular velocity of 2.8 rad/s. The child then walks towards the center of the merry-go-round and stops at a distance 0.882 m from the center. Now determine the angular velocity of the merry-go-round. Answer must be in units of rad/s.