A person of mass 75 kg stands at the center of a rotatingmerry-go-round platform of radius 2.5m and moment of inertia 1100kgm2. Theplatform rotates without friction with angular velocity3.0 rad/s. The person walks radiallyto the edge of the platform.
(a) Calculate the angular velocity when the personreaches the edge.
rad/s
(b) Calculate the rotational kinetic energy of the system ofplatform plus person before and after the person's walk.
J (before)
J (after)