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1 1 point A 2-DoF system below is under external excitations. Determine the amplitude of m1. fisin at m1 2 sin ext M wwww

1 1 point A 2-DoF system below is under external excitations. Determine the amplitude of m1. fisin at m1 2 sin ext M wwww wwwww wwww 1 k k K3 m1 = 1 kg m2 = 2 kg k1= 1 kN/m k2 = 2 kN/m k3 = 3 kN/m f1 = 10 N f2 = 20 N w = 47 rad/s Please give your answers in 4 decimal places.

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