[填空题]
A rotating merry-go-round makes one complete revolution in 4.0 sryum b 0um9*,+h*qspr (Fig. 8–3l n,ken(udnl.ms/ h7ej ;j9h /8). (a) What ilsj9/(ne.; dl/nh 7mjuke h, ns the linear speed 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
