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8. The 2-kg block B is initially at rest on the horizontal plane. After the 7.5-g bullet A is fired into the block, the maximum

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8. The 2-kg block B is initially at rest on the horizontal plane. After the 7.5-g bullet A is fired into the block, the maximum compression in the spring is observed to be 49 mm. Determine the initial velocity vA of the bullet, assuming the bullet becomes embedded in the block. B k = 7.5 kN/m 2 kg 7.58

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