Solved: A 2-lb block rests on the smooth semicylindrical
Chapter 14, Problem 14-41(choose chapter or problem)
A 2-lb block rests on the smooth semicylindrical surface. An elastic cord having a stiffness k = 2 lb/ft is attached to the block at B and to the base of the semicylinder at point C. If the block is released from rest at \(A (\theta = 0^{\circ})\), determine the unstretched length of the cord so the block begins to leave the semicylinder at the instant \(\theta = 45^{\circ}\). Neglect the size of the block.
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