## Q. 3.13

## Chapter 3

## Q. 3.13

Figure 3.21 shows two masses m_{1} \text{ and } m_{2} where m_{1} = 5 \ kg \text{ and } m_2 = 1 \ kg.

The mass m_{1} which is initially at rest is supported by a spring and a damper.

The stiffness coefficient of the spring k is assumed to be 1000 N/m, and the damping coefficient c is assumed to be 10 N · s/m. The mass m_2 is assumed to move with a constant velocity v_2 = −5 \ m/s. Assuming the coefficient of restitution e = 0.9, determine the displacement equations of the two masses after impact.

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