How Do You Approach Biomechanics Torques and Moments Problems?

RaidTRevenge
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QUESTION 1
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WORK TO SOLVE QUESTION 1/SECTION1 - CONFIDENCE 80%
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SECTION1 FINAL
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QUESTION 2
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WORK TO SOLVE QUESTION 2 - CONFIDENCE 60% - 20000N? I think I did something wrong...
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QUESTION 3
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WORK TO SOLVE QUESTION 3 - CONFIDENCE 75%
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QUESTION 4
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-CONFIDENCE 0%

--I wish I knew how to start this problem.
 

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