[填空题]
Model a figure skater’s body as a solid cklohusv19 )mok 9qq 10l, sdb4ylinder and her arms as bu1g9 0 t kgx wb4blwi(a fb7/2htnxg:u+ga,(thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater with outstretched arms, a inx/g :bxbt7tbggw2 9fbhau4u,w+ g kl(1a(0nd with arms held tightly against her body.
Post time 2025-2-18 20:00:22
