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> 把物体做初速度为零的匀加速直线运动的总位移分为等长的三段,按从开始到最后的顺序,经过这三段位移的平均速度之比为( ) A．1:3:5 B．1:4:9 C．1:: D．1: (+1): (+)

问题：

发布时间：2024-09-07

把物体做初速度为零的匀加速直线运动的总位移分为等长的三段,按从开始到最后的顺序,经过这三段位移的平均速度之比为( )

A．1:3:5 B．1:4:9

C．1:: D．1: (+1): (+)

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