Solving Euler equationplease check work thanks

In summary, the Euler equation is a mathematical relationship between forces and motion that is used to predict and understand the movement of objects in various physical systems. To solve it, forces and their magnitudes and directions must be identified and mathematical techniques can then be used. Its applications include designing aircraft wings, analyzing fluid flow, and predicting object behavior in space. However, limitations exist, such as simplifying assumptions and the need for modifications in non-Newtonian systems.
  • #1
darryw
127
0

Homework Statement


determine the gen sol of the DE

[tex]x^2y'' - 5xy' + 9y = 0 [/tex]


Q/P = A = -5 and R/P = B = 9

then use y = x^r in original DE...
y' = rx^(r-1)
y'' = (r-1)rx^(r-2)

insert into DE
[tex]
x^2 (r-1)rx^{r-2} - 5x(rx^{r-1})+ 9x^r = 0
[/tex]

i am confused as to how to proceed.. it looks like a characteristic, but do i separate the x's or what?? please help thanks

 
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  • #2
Hi darryw! :smile:
darryw said:
[tex]
x^2 (r-1)rx^{r-2} - 5x(rx^{r-1})+ 9x^r = 0
[/tex]

erm :redface: … they're all xr :biggrin:

get some sleep! :zzz:
 

1. What is the Euler equation and why is it important?

The Euler equation is a mathematical equation that describes the relationship between the forces acting on an object and its motion. It is important because it allows scientists to predict and understand the movement of objects in various physical systems, such as fluids, gases, and rigid bodies.

2. How do you solve the Euler equation?

To solve the Euler equation, you must first identify the forces acting on the object and their respective magnitudes and directions. Then, you can use mathematical techniques such as integration, differentiation, and vector analysis to calculate the object's motion and position at different points in time.

3. What are some real-world applications of the Euler equation?

The Euler equation has a wide range of applications in various fields, such as engineering, physics, and fluid dynamics. It is used to design aircraft wings, analyze fluid flow in pipes and channels, and predict the behavior of moving objects in space.

4. Are there any limitations to using the Euler equation?

The Euler equation is based on some simplifying assumptions, such as the absence of external forces like friction or air resistance. In reality, these forces may play a significant role in an object's motion, and thus the equation may not accurately predict its behavior in all situations.

5. Can the Euler equation be applied to non-Newtonian systems?

Yes, the Euler equation can be modified to apply to non-Newtonian systems, such as those with non-linear or viscoelastic properties. However, the calculations and solutions may be more complex and require additional mathematical techniques.

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