[填空题]
A rotating merry-go-round ig7w+1glmhr 5makes one comref bep-mmbl d.t *+.8plete revolution in 4.0 s (Fig. 8–38). (a) What is the linear speed of a child see.d pelm*-8bm r .+bftated 1.2 m from the center? $m/s$ (b) What is her acceleration (give components)? $m/s^2$ the center
Post time 2025-2-18 20:00:22
