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    q.1.How can I do part B and c of this math? I did part a here:q.2 what did i do wrongin this question?

    attempt of solution:

    First I found the angle theta using trigonometry asshown. Having done that, I resolved tension into 2 components. Then I tookmoments about AD to calculate tension. Then assuming tension, weight and forcefrom the hinge (r) are the only forces acting, I used the cosine rule to find rwhich gives me 8870N. But the correct answer is 7470 at 48 degree tohorizontal.
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Updated: March 12, 2016


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