[填空题]
Model a figure skater’s body as a m7jac k3f -r6/z tvow1solid cylinder and her arms as thin rods, f-,wae,n kz is2h : 0-owbwcno:6p*zwmaking reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for n hzk-*2 o nficewowa-w06:s:b w,z ,pa spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
