A disk-shaped merry-go-round of radius 2.23m and mass 165 kg rotates freely with an angular speed of 0.701 rev/s. A 63.4 kg person running tangential to the rim of the merry-go-round at 3.51m/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.

wf= ?rad/s

View the original article here