Calculate the horizontal component of the reaction A x at the pinned support A i

Question

Calculate the horizontal component of the reactionAxat the pinned supportAifP=5kNanddis0.7m. Sign convention isright positiveandleft negative.Be sure to include units in kilo-newtons as part of your answer!If you submit your work, be sure to provide a free-body diagram (FBD) with your submission!

I have already submitted this and got it wrong. I can submit work for points back but I cannot figure out what to do. I have tried over five different ways and seem to end up being stuck. Any help would be much appreciated. Thank you.

Explanation / Answer

TAking moment at B, we have :

Ax*0.9+5*0.4+Bx*1.2 =0

0.9*Ax +1.2*Bx= 20 kN -----------(1)

Balancing force in X-direction :

Ax+Bx = 0 --------(2)

Solving (1) and (2), we have

Ax = -66.667 kN

Bx = 66.667 kN

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