【Daily Question】Theoretical Foundation 2020.02.15

2020-02-16View Original

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Multiple-choice question: A wooden board is placed on two transmission drums with a radius of r=0.25m. At the instant shown, the board has a constant acceleration of a=0.5 m/s2, directed to the right. Meanwhile, the point on the edge of the drum wheel has a total acceleration of 3 m/s2. If the board does not slip on the drum wheel, then the speed of this board is ( ). A. 0.86 m/s B. 3 m/s C. 0.5 m/s D. 1.67 m/s Answer: A Hint: An additional reward will be given to those who can explain the solution process; the answer can be found in the response!

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【Daily Question】Theoretical Foundation 2020.02.15

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