[填空题]
Model a figure skater’ureckvz)i ,m x51c) v2s body as a solid cylinder and her arms as thin ro h)da8ck fu/c9ds, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater with outstretched arms, and with arms held tightly against heruf kha c9c8)d/ body.
Post time 2025-2-18 20:00:22
