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【Daily Question】Theoretical Foundation 2020.03.23

2020-03-23View Original

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Multiple-choice question: The illustrated rigid beam AB is supported by rod L and rod 2. It is known that the two rods are made of the same material, but have different lengths; their cross-sectional areas are A1 and A2 respectively. If a load P causes the rigid beam to move downward parallel to its axis, then their cross-sectional areas are: ( ) Answer: C. Hint: Those who can explain the solution process will receive an additional reward; the answer can be found in the response!

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