An overhanging beam ABC with flexural rigidity EI = 15 k-in.2 is supported by a guided support at A and by a spring of stiffness k at point B (see figure). Span AB has length L = 30 in. and carries a uniform load. The over-hang BC has length b = 15 in. For what stiffness k of the spring will the uniform load produce no deflection at the free end C?

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