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Shear, bending, and stress in a beam; Please explain

  1. Mar 14, 2015 #1
    1. The problem statement, all variables and given/known data
    Screenshot (33).png

    2. Relevant equations


    3. The attempt at a solution
    Screenshot (32).png


    I can't understand the solution and what is the variable "X" !!
     
  2. jcsd
  3. Mar 14, 2015 #2

    SteamKing

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    If you look carefully at the diagrams, the meaning of the variable "x" should be apparent. It's the <blank> along the beam from point A.
     
  4. Mar 14, 2015 #3
    Yes , but it is considered part of the force in the " ∑Fy " . That's what I cannot understand
     
  5. Mar 14, 2015 #4

    SteamKing

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    One of the loads on the beam is the distributed load of 3 kips/ft, applied between points A and C.

    Do you understand how a distance might be considered essential in calculating the amount of force created from a distributed load?
     
  6. Mar 14, 2015 #5
    No
     
  7. Mar 14, 2015 #6

    SteamKing

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    What don't you understand about distributed loads? You know, loads spread out over a certain distance along a beam, say.
     
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