A disk-shaped merry-go-round of radius 3.02 m and mass 159 kg rotates freely with an angular speed of 0.635 rev/s. A 54.1-kg person running tangential to the rim of the merry-go-round at 3.07 m/s jumps onto its rim and holds on. Before jumping on the merry-go-round, the person was moving in the same direction as the merry-go-round's rim. What is the final angular speed of the merry-go-round?