2 A peron of mass w stands e the outer edge of a freely notating borisoal disk. The disk in hollow atthe center, in which dhe inner and outer adius of the disk is R/2 and R, respectively, and the mass ofthe disk in M. The disk and the person are initialy ing wih angalar velocity Assumed that thesize of the person is negligible comparnd with the diskaWhat is the total notational inertia of the disk and the penon in tems of m, M, and R(when she isstanding at the outer edge)? (4 poinns) Refer o Table I sbout the outional inertia of s wolid disk).b. If the person walka from the outer edge m the inneredge, what is the new angular velociry of the penon inR/2terms of a, M, R and a 3 point)c What is the change in kinetic energy of the penon+disk? If it increases, explain why (even there isa't anyFigure1external work done on the systom). 3 poinn)

Answered: Image /qna-images/answer/65d64745-9e8c-4a5b-8dba-5e6dee4ddd98.jpg

2 A penon of massw stands the outer edge of a freely notating horiaoal disk. The disk in hollow at the center, in which dhe inner and outer adius of the disk is R/2 and R, respectively, and the mass of the disk in M. The disk and the person are initily ing with angalar velocity Assumed that the size of the person is negligible comparnd with the disk. aWhat is the total notational inertia of the disk and the penon in terms of m, M, and R(when she is standing at the outer edge)? (4 poinns) Refer w Table I sbout the mutional inertia of s wolid disk). b. If the person walks from the outer edge m the inner edge, what is the new angular velociry of the penon in R/2 terms of a, M, R and a 3 point) c What is the change in kinetic energy of the penon disk? If it increases, explain why (even there isn't any extenal work done on the system).3 poinn) Figure1

2 A penon of massw stands the outer edge of a freely notating horiaoal disk. The disk in hollow at the center, in which dhe inner and outer adius of the disk is R/2 and R, respectively, and the mass of the disk in M. The disk and the person are initily ing with angalar velocity Assumed that the size of the person is negligible comparnd with the disk. aWhat is the total notational inertia of the disk and the penon in terms of m, M, and R(when she is standing at the outer edge)? (4 poinns) Refer w Table I sbout the mutional inertia of s wolid disk). b. If the person walks from the outer edge m the inner edge, what is the new angular velociry of the penon in R/2 terms of a, M, R and a 3 point) c What is the change in kinetic energy of the penon disk? If it increases, explain why (even there isn't any extenal work done on the system).3 poinn) Figure1