Jolie works her biceps muscle by holding a 65 N resistance band, F_r, with her arm at a right angle and the band making an angle of 41° (as seen in the picture). Her forearm (lower arm) has a length of 32 cm and a mass, m, of 2.2 kg with the center of mass located 14.0 cm from her elbow joint. Her biceps muscle attaches to her forearm 4.8 cm from her elbow joint. What is the force, F_b, exerted by her biceps muscle to maintain equilibrium?
