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Two blocks connected by cord and pulley system

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(Please see the attached file and solve problem number 3 only)

Blocks A and B weigh 8 lb and 3 lb respectively and are connected by cord and pulley system and released from rest in the position shown with the spring undeformed (see attachment). Knowqing that the constant of the spring is k = 20 lb/ft, determine : a) the velocity of block B after it has moved 6 inches, b) maximum velocity of block B, c) the maximum displacement of block B. Ignore friction and the masses of pulley and the spring.

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The two blocks connected by cord and pulley systems are determined. Step by step solution provided.

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