[填空题]
Model a figure skater’s e aegjl:q-dy8e :3o5x7 cuvc )body as a *nhm llx,42vo solid cylinder and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for o4*hxl,m2vl n a spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
