The figure shows the finishing position of a body builder's arm who is performing a standing lateral raise with a 5.00-kg dumbbell. This is an excellent exercise that isolates the lateral deltoid muscle. The weight of the arm itself is 42.5 N, and it acts at point A in the figure. Given the information shown, and the fact that 0 = 9.740, (a) find the magnitude of the tension force in the deltoid ( F d ) and (b) the normal force from the shoulder joint ( F s ) acting on the humerus bone that holds the arm in this equilibrium position. Fa 12 ON 5 kg F. 0.075 m W . arm 0.250 m Wa 0.510 m