An un-damped single-degree-of-freedom system consists of a mass m = 10kg and a spring of stiffness k = 4000. Find the response of the system when the mass is subjected to the initial conditions: 50mm and o=500mm Note: this question may have more than one answers. Select one or more: a. r(t) = 0.05cos (20t) +0.025sin (20t) b. x(t) cos(20t) 20 + = □c. x(t) □d. (t)= cos(400t) 20 + □e. x(t) = 0.05cos (400t) +0.025sin(400t) cos(201) 40 = sin(20t) 40 + sin(201) 40 sin(400t) 40

An un-damped single-degree-of-freedom system consists of a mass m = 10kg and a spring of stiffness k = 4000. Find the response of the system when the mass is subjected to the initial conditions: 50mm and o=500mm Note: this question may have more than one answers. Select one or more: a. r(t) = 0.05cos (20t) +0.025sin (20t) b. x(t) cos(20t) 20 + = □c. x(t) □d. (t)= cos(400t) 20 + □e. x(t) = 0.05cos (400t) +0.025sin(400t) cos(201) 40 = sin(20t) 40 + sin(201) 40 sin(400t) 40

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

An un-damped single-degree-of-freedom system consists of a mass m=10kg and a spring of stiffness k=4000Nm. Find the response of the system when the mass is subjected to the initial conditions: x0=50mm and x˙0=500mm/s.

Note: this question may have more than one answers.

An un-damped single-degree-of-freedom
system consists of a mass m = 10kg and
a spring of stiffness k = 4000. Find the response of the system when the mass is
subjected to the initial conditions:
50mm and to 500mm
Note: this question may have more than one answers.
Select one or more:
a. r(t) = 0.05cos (20t) +0.025sin(20t)
cos(20t)
20
□b. r(t)
□ c. x(t)
=
U
=
cos(20t)
40
cos(400t)
20
+
+
□d. r(t) =
e. x(t) = 0.05cos (400t) +0.025sin(400t)
sin(20t)
40
+
sin(20t)
40
sin(400t)
40

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