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Two blocks A and B weighing 123 and 234 lb, respectively, are released from rest as shown. At the moment of release the spring is unstretched. Model A and B as particles, neglect air resistance, and assume that the cord is inextensible. Determine the maximum speed attained by block B and the distance from the floor where the maximum speed is achieved if \alpha =35°, the static and kinetic friction coefficients are { \mu }_{ s } = 0.25 and { \mu }_{ k } = 0.2, respectively, and the spring constant is k = 25 lb/ft.

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