[填空题]
Model a figure skater’s body as a solid cyli 8lt 93kau ev;:rjmj0q6yf 2iqnder an.uit mm*,s-kwd her arms as thin rods, making reasonable estimates for the dimen s,tu*im-m. wksions. Then calculate the ratio of the angular speeds for a spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
