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A simplified model of a washing machine is shown. A bundle of wet clothes forms a weight $w_{b}$ of $20 \mathrm{lb}$ in the machine and causes a rotating unbalance. The rotating weight is 40 lb (including $w_{b}$ ) and the radius of the washer basket $e$ is 9 in. Knowing the washer has an equivalent spring constant $k=70 \mathrm{lb} / \mathrm{ft}$ and damping ratio $\zeta=c / c_{c}=0.05$ and during the spin cycle the drum rotates at $250 \mathrm{rpm}$, determine the amplitude of the motion and the magnitude of the force transmitted to the sides of the washing machine.

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