gc textbook chapter 8 Rotational Motion (id: d3c549ceb)

[填空题]
A rotating merry-go-rf: - /hzg, h*pten0uryound makes one menhy mc.q(- :p6htw(gc)n4 n x-xi1icomplete revolution in 4.0 s (Fig. 8–38). (a) What is the linear speed of a c(.en4c pnhqt i(y-xi:g cx6wh1 -mnm)hild 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: