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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
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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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.
Transcribed Image Text: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.
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