【简答题】Points【图片】 and【图片】 are any two arbitrary points in a plane figure. At a instant, the velocities of these two points are 【图片】and 【图片】, respectively; The accelerations of these two points are 【图片】and 【图...
【简答题】At a instant, the magnitudes of velocities of points【图片】and【图片】in a plane figure are【图片】and【图片】, respectively, and【图片】.Which drawings are impossible for the velocity directions?A. B. C. D.