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What is the magnitude of the resultant joint reaction force (JRF) in newtons (N) if the...

What is the magnitude of the resultant joint reaction force (JRF) in newtons (N) if the dumbbell acts at 0.333 m and the biceps acts at 0.026 m? Assume the dumbell is still 20 kg and the COM of the arm creates the same torque. (Hint: Find the Force of biceps tendon first)

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