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  3. the spring has a stiffness k 50 lbft and an...

Question: the spring has a stiffness k 50 lbft and an...

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The spring has a stiffness k 50 lb/ft and an unstretched length of 2 ft. As shown, it is confined by the plate and wall using cables so that its length is 1.5 ft. A 4.7-lb block is given a speed vA when it is at A, and it slides down the incline having a coefficient of kinetic friction 0.2. It strikes the plate and pushes it forward 0.25 ft before stopping. Neglect the mass of the plate and spring. (Figure 1), Part A Determine the speed of the block at A Express your answer to three significant figures and include the appropriate units. LA Figure 1 of 1 vA-Value Units Submit Request Answer Provide Feedback 50lb/ft 3 ft 1.5 ft

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