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Unformatted text preview: acceleration of block A. Both blocks weigh 5 pounds, and the double pulley weighs 10 pounds. r1 = 0.75 ft, r2 = 1.5 ft and the radius of gyration (k) for the double pulley is 0.6 ft. (remember: I = m k 2 ) B A r2 r1 μ =0.15 k Name and Discussion Section Number _______________________________________ 4. (25 points) In the figure below, block B is attached to the spring, the spring is initially compressed a distance d = 0.75 ft., and both blocks are at rest. (Note: if the spring were slowly relaxed, blocks A and B would be touching.) Block B is released, and is propelled by the spring, and collides with block A. Determine the speed of block A immediately after the collision. Block A weight 10 pounds, Block B weighs 5 pounds, and the spring stiffness, k, is 25 pounds per foot....
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 Spring '08
 Russell
 Mass, Imperial units, United States customary units, discussion section number, double pulley

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