Aperson of mass 70 kg stands at the center of a rotating merry-go-round platform of radius 2.9 m and moment of inertia 900 kg⋅m2 . the platform rotates without friction with angular velocity 0.95 rad/s . the person walks radially to the edge of the platform. part apart complete calculate the angular velocity when the person reaches the edge. express your answer using three significant figures and include the appropriate units. ωω = 0.574 rads previous answers correct part b calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk.