试题与答案

一物体由静止沿光滑的斜面匀加速下滑距离为L时,速度为v,当它的速度是v/2时,它

题型:不定项选择

题目:

一物体由静止沿光滑的斜面匀加速下滑距离为L时,速度为v,当它的速度是v/2时,它沿斜面下滑的距离是 [ ]

A.L/2

B.L/3

C.L/4         

D.3L/4

答案:

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参考答案:社会组织

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