gc textbook chapter 8 Rotational Motion (id: d3c549ceb)

[填空题]
A rotating merry-go-round /q9,kxev jejo d i7no9670u gymakes one complete revolution i 1ylg/a347;e y jl0 w bp8pjy(df4ykmjn 4.0 s (Fig. 8–38). (a) What is the linear speed of a child seated 1.2 m from the ywbp/l7l(jjep 1 a;4ydgj 0fy4 k 8m3ycenter?    $m/s$
(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: