A body weighing 150 N, moves with simpleharmonic motion. The velocity andacceleration of the body when it is 200 mmfrom the centre of oscillation, are 5 m/s and20 m/s? respectively. Determine (a) amplitudeof motion and (b) no. of vibrations per minute11A helical spring has a stiffness of 1 N/mm.What mass should be hung on it, so that itmay oscillate with a periodic time of 1:5second ? Ans(57 kg)12

Given: Spring stiffness k=1N/mm or 1000N/mMass (m)=?Time period (T)=1.5seconds

Answered: • A helical spring has a stiffness of 1…

• A helical spring has a stiffness of 1 N/mm. What mass should be hung on it, so that it may oscillate with a periodic time of 1-5 second ? Ans(57 kg)

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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Question

100%

A body weighing 150 N, moves with simple
harmonic motion. The velocity and
acceleration of the body when it is 200 mm
from the centre of oscillation, are 5 m/s and
20 m/s? respectively. Determine (a) amplitude
of motion and (b) no. of vibrations per minute
11
A helical spring has a stiffness of 1 N/mm.
What mass should be hung on it, so that it
may oscillate with a periodic time of 1:5
second ? Ans(57 kg)
12

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