A 6 lb weight is placed upon the lower end of a coil spring suspended from...

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A 6 lb weight is placed upon the lower end of a coil springsuspended from a fixed beam. The weight comes to rest in itsequilibrium position, thereby stretching the spring 4 inches.Then
beginning at t = 0 an external force given by F (t) = 27 sin(4t) ?3 cos(4t) is applied to the system. The resistance of the medium isthree times the velocity (in ft/sec). Find the displacement of theweight as a function of time.

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