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When the 100-lb block is at h = 3 ft above the cylindrical post and spring assembly, it has a speed of υ = 20 ft/s. If the post is made of 2014–T6 aluminum and the spring has the stiffness of k = 250 kip/in., determine the required minimum diameter d of the post to the nearest
Prob. 14–55

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Chapter 14 Solutions
Mechanics of Materials
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