A 10-lb weight is suspended by a spring that is stretched 2 in. bythe weight. Assume a resistance whose magnitude is 20/√g lbtimes the instantaneous velocity in feet per second. If the weightis pulled down 3 in. below its equilibrium position and released,find the time required to reach the equilibrium position for thefirst time.

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Forced undamped vibrations

In mechanical engineering, vibration is expressed as the term that occurs due to an object's backward and forward movement about a point of equilibrium. Generally, there are three types of vibrations which are,