5. A mass hangs from a helical spring. The periodic time of free vibration in a vertical direction is 1.25sec. When the mass is at rest the upper end of the spring is made to move with an upward displacement of such that y=5 sin 27t cm, († being the time in second measured from the beginning of motion). Through what height is the mass raised in the first 0.4 second? Find also the amplitude of motion of the mass for steady state vibration.

5. A mass hangs from a helical spring. The periodic time of free vibration in a vertical direction is 1.25sec. When the mass is at rest the upper end of the spring is made to move with an upward displacement of such that y=5 sin 27t cm, († being the time in second measured from the beginning of motion). Through what height is the mass raised in the first 0.4 second? Find also the amplitude of motion of the mass for steady state vibration.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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