A 5-kg block, attached to the lower end of a spring whose
Chapter 19, Problem 19.17(choose chapter or problem)
A 5-kg block, attached to the lower end of a spring whose upper end is fixed, vibrates with a period of 6.8 s. Knowing that the constant k of a spring is inversely proportional to its length, determine the period of a 3-kg block which is attached to the center of the same spring if the upper and lower ends of the spring are fixed.
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