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Ok, so Torque of arm = Torque of ball? r*F = r*F (0.0226)*F = (0.3054)(9.8)(2.49kg) F = 7.45N ?Reference https://www.physicsforums.com/threads/force-a-bicep-must-exert-to-hold-a-540-0g-ball-with-the-forerm-parallel-to-the-floor.439168/
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