The lever AB is attached to the horizontal shaft BC that
Chapter 10, Problem 10.39(choose chapter or problem)
The lever AB is attached to the horizontal shaft BC that passes through a bearing and is welded to a fixed support at C. The torsional spring constant of the shaft BC is K; that is, a couple of magnitude K is required to rotate end B through 1 rad. Knowing that the shaft is untwisted when AB is horizontal, determine the value of u corresponding to the position of equilibrium when P = 100 N, l = 250 mm, and \(K=12.5\mathrm{\ N}\cdot\mathrm{m}/\mathrm{rad}\).
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