题目内容
在同一平台上的O点水平抛出三个物体,作平抛运动的轨迹如图所示。则三个物体作平抛运动的初速度vA、vB、vC的关系和做平抛运动的时间tA、tB、tC的关系分别是 ( )
2021-08-11
A.vA>vB>vC,tA>tB>tC
B.vA=vB =vC,tA=tB=tC
C.vA t B>t C
D.v A>v B>v C,t A< t B
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