2. A 700 mm. diameter hoop rolls without sliding down the 30-degree inclined rough surface. At the instant shown, the speed of point B is 3.13 m/s. Which of the following best describes the speed of point C? 1.565 m/s 2.21 m/s 3.13 m/s 4.47 m/s D B 30° r = 350 mm. C
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