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The springs shown in the figure are all ...

The springs shown in the figure are all unstretched in the beginning when a man starts pulling the block. The man exerts a constant force F on the blcok. Find the amplitude and the frequency of the motion of the block.

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`(F(K_(2)+K_(3)))/(K_(1)K_(2)+K_(2)K_(3)+K_(3)K_(1)),(1)/(2pi)sqrt((K_(1)K_(2)+K_(2)K_(3)+K_(3)K_(1))/(M(K_(2)+K_(3))))`
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