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Math Help - Reactions problem. Please Help

  1. #1
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    Reactions problem. Please Help

    Hello. I am having a test coming up soon and am totally lost on how to calculate reactions at given points. In this example I am to solve for Reactions at point A & B.



    So the first thing I would do is spit this in half into 2 different shapes, one triangle and one rectangle correct?

    If I was to solve for the triangle would I do this:
    force = (2.5 kN/m - 0.5 kN/m) * 3 = 6

    And its location is:
    \frac{3}{3} to the right of A?


    Is this correct? If not, could someone please explain on how you would approach this question?

    Thank you
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by system32 View Post
    Hello. I am having a test coming up soon and am totally lost on how to calculate reactions at given points. In this example I am to solve for Reactions at point A & B.



    So the first thing I would do is spit this in half into 2 different shapes, one triangle and one rectangle correct?

    If I was to solve for the triangle would I do this:
    force = (2.5 kN/m - 0.5 kN/m) * 3 = 6

    And its location is:
    \frac{3}{3} to the right of A?


    Is this correct? If not, could someone please explain on how you would approach this question?

    Thank you
    Take moments about A to find the reaction force at B.

    The use that the sum of the reactions is equal to the total load to solve for the reaction force at A.

    CB
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