题目内容
（请给出正确答案）
[主观题]
At a instant, the magnitudes of velocities of poin...
At a instant, the magnitudes of velocities of points
and
in a plane figure are
and
, respectively, and
. Which drawings are impossible for the velocity directions？
A、
B、
C、
D、
提问人：网友lhr3840_1977
发布时间：2022-01-07
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