[填空题]
Model a figure skater’s body as apkyio j eg ffvw (9p,s3b/ n0n*hf,8p/ solid cylinde3pdq+zb g 5: 2.vw )g)bkaflyxr and her arms as thin rods, making reasonable estima.g y:g2+fl3 )b)dz5 qbwpkxavtes 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
