Answered: The slender bar of Figure 3.9(a) has a…

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

The slender bar of Figure 3.9(a) has a mass of 31 kg and a length of 2.6 m. A 50 N force is statically applied to the bar at P then removed. The ensuing oscillations of Pare moni- tored, and the acceleration data is shown in Figure 3.9(b) where the time scale is calibrated but the acceleration scale is not. (a) Use the data to find the spring stiffness k and the damping cocfficient c. (b) Calibrate the acceleration scale.

Assignment-2
The slender bar of Figure 3.9(a) has a mass of 31 kg and a length of 2.6 m. A 50 N force
is statically applicd to the bar at P then removed. The cnsuing oscillations of P are moni-
tored, and the acceleration data is shown in Figure 3.9(b) where the time scale is calibrated
but the acceleration scale is not.
(a) Use the data to find the spring stiffncss & and the damping cocfficient c.
(b) Calibrate the acceleration scale.
50 N
C=?
m = 31 kg
k= ?
0.05
0.1
0.15
0.2
0.25
0.65 m-
1.95 m
Time (s)
(a)
(b)
at) (scale not calibrated)

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