如图3所示,从倾角为θ的足够长的斜面顶端A点,先后将相同的小球

如图3所示,从倾角为θ的足够长的斜面顶端A点,先后将相同的小球以大小不同的水平速度v1v2向右抛出,落在斜面上.关于两球落到斜面上的情况,说法中正确的是(   )

A.落到斜面上的瞬时速度大小相等

B.落到斜面上前,在空中飞行的时间相同

C.落到斜面上的位置相同

D.落到斜面上的瞬时速度方向相同

答案

D

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