Asked by Cara
                Calculate the force,  required of the "deltoid" muscle to hold up the outstretched arm shown in the figure . The total mass of the arm is 2.9 kg.
            
            
        Answers
                    Answered by
            drwls
            
    Sorry. No figure, no answer. 
Do a torque balance. The answer will depend upon muscle angles and where they are attached.
    
Do a torque balance. The answer will depend upon muscle angles and where they are attached.
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