[填空题]
Model a figure skater’htw7 p(ewm+s3s body as a )om-q9hfdr .esolid cylinder and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater wit-eom )f 9drh.qh outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
