[填空题]
Model a figure skater’s body ah, oryi5 g6kf,s a solid cylinder and g.e: :r ag+hrjher arms as thin rods, making reasonable estimatese g+:g:hr.r aj for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
