An automobile wheel-and-tire assembly of total weight 47
Chapter 19, Problem 19.159(choose chapter or problem)
An automobile wheel-and-tire assembly of total weight 47 lb is attached to a mounting plate of negligible weight which is suspended from a steel wire. The torsional spring constant of the wire is known to be \(K=0.40\ \mathrm{lb}\cdot\mathrm{in}./\mathrm{rad}\). The wheel is rotated through \(90^{\circ}\) about the vertical and then released. Knowing that the period of oscillation is observed to be 30 s, determine the centroidal mass moment of inertia and the centroidal radius of gyration of the wheel-and-tire assembly.
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