Question

2. Beanie Campbell is performing an "Iron Cross" hold on still rings as shown. The
gymnast has a mass of 70 kg, and each of his arms is 0.7 m long (from the shoulder to
hand). While having his arms parallel to the ground, he mainly uses both his latissimus
dorsi and deltoid muscle to support himself. The latissimus dorsi attaches 8 cm from the
shoulder at an angle of 30 degrees, and the deltoid attaches 9 cm from the shoulder.
a) Find the tension in the rope.
b) Find the force in Beanie's left latissimus dorsi and shoulder joint.​

Answer 1

Answer:

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