[填空题]
Model a figure skater’s body as a solid cylip z//(uk;ura 9 0xruyrnder and her arms as thin rods, m(p )p+*ld.fgba p4bbpaking r b.bgbpppf p+(*ad)4leasonable estimates 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
