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Moments Maths A Level Q

hiya, i'm pretty stuck on part 3 of this q. i feel like i may have got the drawn the diagram slightly off asw but eh. if anyone could perhaps help me w this q that'd be great, ty.
(edited 6 months ago)
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Original post by aditi_idk
hiya, i'm pretty stuck on part 3 of this q. i feel like i may have got the drawn the diagram slightly off asw but eh. if anyone could perhaps help me w this q that'd be great, ty.

Youre missing the key force pair at Y. Then just write down the equilibrium moments equation for each bar and solve

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