A disk-shaped merry-go-round of radius 2.63 m and mass 155

Last updated: 7/5/2022

A disk-shaped merry-go-round of radius 2.63 m and mass 155 kg rotates freely with an angular speed of 0.631 rev/s. A 56.4 kg person running tangential to the rim of the merry-go-round at 3.41 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? Express your answer in radians per second.