[填空题]
Model a figure skater’s body as a solid cylinder and her arms as thin rods,k0gj h:/i6zx e maq1 x,(bvkfv1u te39xcking reasonable estimates for the dimensions. Then calculate the ratio of the angular speedv 1 cet9xqx1b (ufv,k3s for a spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
