[填空题]
Model a figure skater’s body as a solid cylindedx. u w(vu29l ,qzwa6 /ms.cvkr and her arms as lnwr gzx2*:,nthin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater with outstretched arms, and w*2nrzg wxl n:,ith arms held tightly against her body.
Post time 2025-2-18 20:00:22
