Camila, whose mass is 62 kg, stands at the outer rim of a 300 kg merry-go-round of radius 4.5 m, that is rotating once every 6.0 s.While it is rotating, she walks to a point 0.75 m from the center of the merry-go-round. What is the rotational period of the merry-go-round when Camila the point 0.75 m from the center?