# Question: The figure shows a torsion bar OA fixed at O

The figure shows a torsion bar OA fixed at O, simply supported at A, and connected to a cantilever AB. The spring rate of the torsion bar is kT , in newton-meters per radian, and that of the cantilever is kC , in newtons per meter. What is the overall spring rate based on the deflection y at point B?

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