[填空题]
A rotating merry-go-roun.n3j7qwz.ssxlu/ g+qed5:k p d makes orh09wiah.5 a1mqt )rqne complete revolution in 4.0 s (Fig. 8–38). (a) What is the linear speed of a child seated 1.2 m from the cent ihqqwh a09)t.5mra1 rer? $m/s$ (b) What is her acceleration (give components)? $m/s^2$ the center
Post time 2025-2-18 20:00:22
