[填空题]
A rotating merry-go-round makes one complete revolut20gqu-ql0f g)6 ii.7/yrlvorlp u 0x pion in 4.0 s ,aij,lv/l hsv69bx 5n (Fig. 8–38). (a) What is the linear speed v9,bvl5 ,asxnijlh6/of a child seated 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
