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A block of mass 80 kg is supported by the spring arrangement as shown in the figure. The block is moved vertically downward from

A block of mass 80 kg is supported by the spring arrangement as shown in the $20 kNin figure. The block is moved vertically downward from its equilibrium position 20 and then released. The amplitude of the resulting vibration of the block is 50 80kg mm, determine (a) the period and frequency of the motion, 40 kN/m (b) the displacement of the block as a time function, (b) the maximum velocity and maximum acceleration of the block. 

A block of mass 80 kg is supported by the spring arrangement as shown in the figure. The block is moved vertically downward from its equilibrium position 20km and then released. The amplitude of the resulting vibration of the block is 50 mm, determine 80 kg (a) the period and frequency of the motion, (b) the displacement of the block as a time function, (b) the maximum velocity and maximum acceleration of the block. www RESPONS 20 kN/m 40kN/m

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