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[Solved] 3 Dimensional Equlibirum - Statics (Astar, plz help)

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SGVaibhav:
i got it.....
but where is astar ???

elemis:
He was online a few hours ago.

astarmathsandphysics:
I am here now. Am looking at question

astarmathsandphysics:
moments about A for tension in BC
0.6j*-300k=Tx(-0.1i+0.2k)
Tx(-0.1i+0.2k)=-180i
T=-180i.180i/((-0.1i+0.2k).(-180i)) =-32400/-36j=-900j

astarmathsandphysics:
The diagram is difficult to make out. is BC paralell to the y axis?

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