[填空题]
Model a figure skater’s body as a solid cylindejy1t7zcz v.h2 lox56xr and her a.7s ,k 6qcbbs l*1cwfwrms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skate b7lbq.w s1*fcwsk,6 cr with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
