Joey, whose mass is 40kg , stands at rest at the outer edge of the frictionless 250kg merry-go-round, 2.0m from its center. the merry-go-round is also at rest. joey then begins to run around the perimeter of the merry-go-round, finally reaching a constant speed, measured relative to the ground, of 5.0 m/s. joey, whose mass is 40kg , stands at rest at the outer edge of the frictionless 250kg merry-go-round, 2.0m from its center. the merry-go-round is also at rest. joey then begins to run around the perimeter of the merry-go-round, finally reaching a constant speed, measured relative to the ground, of 5.0 m/s. joey, whose mass is 40kg , stands at rest at the outer edge of the frictionless 250kg merry-go-round, 2.0m from its center. the merry-go-round is also at rest. joey then begins to run around the perimeter of the merry-go-round, finally reaching a constant speed, measured relative to the ground, of 5.0 m/s.

what is the final angular speed of the merry-go-round? assume that joey runs in positive direction.