题目内容


如图所示皮带转动轮,大轮直径是小轮直径的3倍,A是大轮边缘上一点,B是小轮边缘上一点,C是大轮上一点,C到圆心O1的距离等于小轮半径.转动时皮带不打滑,则A、B、C三点的角速度之比ωA:ωB:ωC=         ,向心加速度大小之比aA:aB:aC=                                                                                  .         

                                                                                            

                                                                                                                                


1:3:1,3:9:1.

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