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The truss shown has L = 3 m. What is the force in member AB? D 30 N L B A 20 N 30 N 20 N 10 N 15 N

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Answer #1

30 N C Ar Qo N Ay Free Body Deagoam Cy Ax = Reacton forte at A Ay= Reachn forte af A Cy Reacton force at C take moment af A oConsider jomtA FAE FAF equatng vert cal forces FAB Ax O FAF 8In YS Ay FAF Force 1n AF Equating honzontal forces Ax S2 X COn Y

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