Centroid of a bounded region: Help

In summary, to find the centroid of the region bounded by the graphs of y = sqrt(x) and y = (1/2)x, you need to set up the integral A = [f(x) - g(x)]dx from x = 0 to x = 4, with the points (0,0) and (4,2) as the bounds. However, the attempt at a solution is incorrect as the integral should be A = [(x^(3/2)) - ((x^2)/4)] from 0 to 4, not A = ((2x^3)/3) - ((x^2)/4)] from 0 to 4.
  • #1
x31fighter
5
0

Homework Statement


Find the centroid of the region bounded by the graphs of y = sqrt (x) and y = (1/2) * x


Homework Equations


A = [f(x)-g(x)]dx
from point a -> b


The Attempt at a Solution


x = [0,4] ; p(0,0) and p(4,2)

I am just checking on if I did the integral correctly.

A = ((2x^3)/3) - ((x^2)/4)] 0 -> 4
 
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  • #2
x31fighter said:

Homework Statement


Find the centroid of the region bounded by the graphs of y = sqrt (x) and y = (1/2) * x


Homework Equations


A = [f(x)-g(x)]dx
from point a -> b


The Attempt at a Solution


x = [0,4] ; p(0,0) and p(4,2)

I am just checking on if I did the integral correctly.

A = ((2x^3)/3) - ((x^2)/4)] 0 -> 4

Not quite. If you integrate x1/2 you don't get x3.
 

1. What is the centroid of a bounded region?

The centroid of a bounded region is the geometric center or average position of all the points within that region.

2. How is the centroid calculated?

The centroid of a bounded region is calculated by finding the average of the x-values and the average of the y-values of all the points within that region.

3. Why is the centroid important?

The centroid is important because it can help determine the balance and stability of a region. It can also be used in various engineering and mathematical calculations.

4. Can the centroid be outside of the bounded region?

Yes, the centroid can be outside of the bounded region. This can occur if the region is irregularly shaped or has holes in it.

5. How is the centroid used in real-world applications?

The centroid is used in many real-world applications, such as determining the center of mass of an object, finding the center of pressure on an airplane wing, and calculating the average location of a city's population for city planning.

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