Question: Problem 4 . [ Free , undamped vibration ] In the Spring - Mass - Damper system, the mass is 1 kg . The damping

Problem 4.[Free, undamped vibration]
In the Spring-Mass-Damper system, the mass is 1 kg . The damping coefficient is c=0. There is no external force. The spring stretches 0.2 m by 0.8 N force. The initial values are x0=1m,u0=6ms. Find the motion equation, amplitude, phase angle, period, frequency.
Problem 4 . [ Free , undamped vibration ] In the

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