[填空题]
Model a figure skater’s body as a solj /dc (hc9h-vtggvb8d*s*7wi id cylinder and her arms ayp1cz;y (pk6w4v +o chs thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater wit vk+cwc 1;poyzy h(64ph outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
