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Two Pendulums

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Two pendulums are hung adjacent to each other as shown in the picture. Bob #1 has a mass m, and bob #2 has a mass 2m. Bob #1 is pulled aside until the support string makes an angle of 45 degrees with the vertical direction and then released. When the bobs collide, they stick together. What is the maximum angle made by the support strings with respect to the vertical after the collision? I believe the answer is 14.7 degrees. I need to see each step and formula to solve this question.

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