The figure shows an outstretched arm (0.61 m in length) that isparallel to the floor. The arm is pulling downward against the ringattached to the pulley system, in order to hold the 98-N weightstationary. To pull the arm downward, the latissimus dorsi muscleapplies the force in the figure, at a point that is 0.069 mfrom the shoulder joint and oriented at an angle of 29°. Thearm has a weight of 42 N and a center of gravity (cg) that islocated 0.28 m from the shoulder joint. Find the magnitude of.


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