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Math Help - Help determining the position of the centroid

  1. #1
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    Help determining the position of the centroid

    The profile of a fan blade is defined by the equation:

    y= 0.3 sin x for 0 <_ x <_ pie/2

    Sketch the profile and determine the position of the centroid of the profile?

    I have sketched the profile, however the text books are a bit thin on this subject matter!

    Any help would be appreciated.
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by Steve Mckenna View Post
    The profile of a fan blade is defined by the equation:

    y= 0.3 sin x for 0 <_ x <_ pie/2

    Sketch the profile and determine the position of the centroid of the profile?

    I have sketched the profile, however the text books are a bit thin on this subject matter!

    Any help would be appreciated.
    The centroid of a region R is:

    {\bf{X}}_c= \frac{\int_R {\bf{x}} d{\bf{x}} }{\int_R d{\bf{x}}}

    The integral in the denominator is the area of the region R

    CB
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