14. The transient solution of the vibrating system y"+ 2y + 2y = cos cos 2t, y(0) = 0, y/(0) = 3 is: (a) y = et cos t +tesin t (b) y= ecost + %e* sin t (c) y = - cos 2t +sin 2t (d) y = Cie" cos t+ Cze sin t -t cos 2t + sin 2t (e) None of the above. 15. The steady-state solution of the vibrating system y"+ 4y + 8y = 6+ 10e", y(0) = 2, y'(0) = 1 is: (a) z = }Cje-2" cos 2t – e sin 2t (b) z = Ce cos 2t - (c) z+je (d) z =+ }e COS fe sin 21 ++ }e (e) None of the above.
14. The transient solution of the vibrating system y"+ 2y + 2y = cos cos 2t, y(0) = 0, y/(0) = 3 is: (a) y = et cos t +tesin t (b) y= ecost + %e* sin t (c) y = - cos 2t +sin 2t (d) y = Cie" cos t+ Cze sin t -t cos 2t + sin 2t (e) None of the above. 15. The steady-state solution of the vibrating system y"+ 4y + 8y = 6+ 10e", y(0) = 2, y'(0) = 1 is: (a) z = }Cje-2" cos 2t – e sin 2t (b) z = Ce cos 2t - (c) z+je (d) z =+ }e COS fe sin 21 ++ }e (e) None of the above.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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13. An object in simple harmonic motion has period r. At time t=0, y(0) = 3, v(0) = 0.
The equation of motion is:
(a) y = 3 sin (6t+)
(b) y = 2 sin (8t + )
(c) y = 3 sin (8t +)
(d) y = 4 sin (6t + )
(e) None of the above.
14. The transient solution of the vibrating system
y" + 2y + 2y = cos 2t, y(0) = 0, y(0) = 3
is:
(a) y = te cos t+te sin t
(b) y = te cost + e sin t
(c) y = - cos 2t + sin 2t
(d) y = Chet cost+Czet sin t- + cos 2t + sin 2t
(e) None of the above.
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Transcribed Image Text:H EMCF-9-F20.dvi
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13. An object in simple harmonic motion has period r. At time t=0, y(0) = 3, v(0) = 0.
The equation of motion is:
(a) y = 3 sin (6t+)
(b) y = 2 sin (8t + )
(c) y = 3 sin (8t +)
(d) y = 4 sin (6t + )
(e) None of the above.
14. The transient solution of the vibrating system
y" + 2y + 2y = cos 2t, y(0) = 0, y(0) = 3
is:
(a) y = te cos t+te sin t
(b) y = te cost + e sin t
(c) y = - cos 2t + sin 2t
(d) y = Chet cost+Czet sin t- + cos 2t + sin 2t
(e) None of the above.
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14. The transient solution of the vibrating system
y/"+ 2y/ + 2y = cos 2t, y(0) = 0, y/(0) = 3
is:
(a) y =te-t cost+tesin t
(b) y = e cost+et sint
(c) y = - cos 2t + sin 2t
(d) y = Cjet cos t+Cze-t sin t -+ cos 2t + sin 2t
(e) None of the above.
15. The steady-state solution of the vibrating system
y" + 4y/ + 8y = 6 + 10e", y(0) = 2, y(0) = 1
is:
(a) z = Ce-4 cos 2t – e-t sin 2t
(b) z = Che-4 cos 2t – e-t sin 2t + + }e2t
(0) z%3D%3 + 2리
(d) z = +}et
(e) None of the above.
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Transcribed Image Text:I AllTestinstances
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14. The transient solution of the vibrating system
y/"+ 2y/ + 2y = cos 2t, y(0) = 0, y/(0) = 3
is:
(a) y =te-t cost+tesin t
(b) y = e cost+et sint
(c) y = - cos 2t + sin 2t
(d) y = Cjet cos t+Cze-t sin t -+ cos 2t + sin 2t
(e) None of the above.
15. The steady-state solution of the vibrating system
y" + 4y/ + 8y = 6 + 10e", y(0) = 2, y(0) = 1
is:
(a) z = Ce-4 cos 2t – e-t sin 2t
(b) z = Che-4 cos 2t – e-t sin 2t + + }e2t
(0) z%3D%3 + 2리
(d) z = +}et
(e) None of the above.
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