Calculate the INITIAL AND FINAL Kinetic energy for this system.

IP A disk-shaped merry-go-round of radius 2.51 m and mass 150 kg rotates freely with an angular speed of 0.69 rev/s . A 65 kg person running tangential to the rim of the merry-go- round at 3 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