l₁ = win = 117.93 = 277.53 2 = 4'M √117.92 17.93 => W₁n = 10.86 rad/s or marks 2 maks. W2n = 277.53 => W24 = 16.66 rad/s k 300 =0.21 © X2 -m, w, n² +hy th₂ Let Assume Asmme/sy X₁ = 1 => X 2 = 4.76 (= -11 x117.93 +2400 +300 X = (y) 4-76 marks marks ×2 K2 -miwin + kith₂ = 300 --11 X277.53 +2400+300 1 -0.85 Sy X1=1 => X2= -1.18=) = -1.18 marks mens.

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter1: Introduction To Statics
Section: Chapter Questions
Problem 1.12P: A differential equation encountered in the vibration of beams is d4ydx4=2D where x = distance...
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this is answer to a vibrations question. in the last part it states an assumption of x2, im not sure where this assumption comes from. an answer would be greatly appreciated

 

l₁ = win
=
117.93
= 277.53
2
= 4'M
√117.92
17.93 =>
W₁n = 10.86 rad/s
or
marks
2 maks.
W2n =
277.53 =>
W24 =
16.66 rad/s
k
300
=0.21
©
X2 -m, w, n² +hy th₂
Let Assume
Asmme/sy
X₁ = 1
=> X 2 =
4.76
(=
-11 x117.93 +2400 +300
X =
(y)
4-76
marks
marks
×2
K2
-miwin + kith₂
=
300
--11 X277.53 +2400+300
1
-0.85
Sy
X1=1 =>
X2= -1.18=)
=
-1.18
marks
mens.
Transcribed Image Text:l₁ = win = 117.93 = 277.53 2 = 4'M √117.92 17.93 => W₁n = 10.86 rad/s or marks 2 maks. W2n = 277.53 => W24 = 16.66 rad/s k 300 =0.21 © X2 -m, w, n² +hy th₂ Let Assume Asmme/sy X₁ = 1 => X 2 = 4.76 (= -11 x117.93 +2400 +300 X = (y) 4-76 marks marks ×2 K2 -miwin + kith₂ = 300 --11 X277.53 +2400+300 1 -0.85 Sy X1=1 => X2= -1.18=) = -1.18 marks mens.
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