Question: The solution of a certain system that is undergoing an undamped free vibration motion is given by x = C sin (nt + ). When

The solution of a certain system that is undergoing an undamped free vibration motion is given by x = C sin (nt + ). When this is plotted on x versus nt axis, the following graph can be obtained. What is the angle called? Group of answer choices The phi angle. The phase angle. The system angle. The behind angle

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