[填空题]
Model a figure skater’s bodvra)sw82ha )o wh3s3ty as a solid cylinder and her arms8 p5ora 75df y ;qzd+fq)wew8t as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skate5p )qeqw ra df78o85y fz;+dtwr with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
