What is the correct answer to the solution below?

A girl of mass 28.8 kg stands on the rim of a frictionless merry-go-round of radius 1.79 m and rotational inertia 248 kg-m- that is not moving. She throws a rock of mass 787 g horizontally in a direction that is tangent to the outer edge of the merry-go-round. The speed of the rock, relative to the ground, is 4.42 m/s. Afterward, what are (a) the angular speed of the merry-go-round and (b) the linear speed of the girl? (a) Number 1842E-3 Units radis (b) Number 3.297E-2 Units V