[填空题]
Model a figure skater’s body-anc/fj ; 0vhx;scj,p as a s 0e:r-mwio ,vholid cylinder and her arms as thin rods, making reasonable estimatm0- :whe,ri voes 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
