gc textbook chapter 8 Rotational Motion (id: d3c549ceb)

[填空题]
A rotating merry-go-round makes ogi h(o45 7zk3vhqf w,f 3cw0onne complete revoh,( k(q k3jeaelution in 4.0 s (Fig. 8–38). (a) What is 3( (qk jhae,ekthe linear speed of a child seated 1.2 m from the center?    $m/s$
(b) What is her acceleration (give components)?    $m/s^2$  ----待选择----towardsaways  the center

参考答案:
空格1: 1.9±2%  空格2: 3±2%  空格3: towards 


本题详细解析: