 #1
 151
 0
ƩF_{x} = 0
ƩF_{y} = 0
ƩMoments about a point = 0
A_{y} + B_{y}  2KN = 0
Momments about A = (2KN * 2.4) + 1*ReactionC = 0
4.8KN = reactionC
Sub into first eq
A_{y} +(4.8) 2 = 0
A_{y} = 6.8
To find out the reaction in member AB
I have
6.8  T_{ab} Cos(tan^{1}0.8/1) = 0
T_{ab} = 6.8/Cos(tan^{1}0.8/1) = 8.738
I have the answer to be 2.56
ƩF_{y} = 0
ƩMoments about a point = 0
A_{y} + B_{y}  2KN = 0
Momments about A = (2KN * 2.4) + 1*ReactionC = 0
4.8KN = reactionC
Sub into first eq
A_{y} +(4.8) 2 = 0
A_{y} = 6.8
To find out the reaction in member AB
I have
6.8  T_{ab} Cos(tan^{1}0.8/1) = 0
T_{ab} = 6.8/Cos(tan^{1}0.8/1) = 8.738
I have the answer to be 2.56
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