Consider a buoy floating on the ocean surface near the shore. The buoy consists of a ball with mass Mb = 80 kg and radius R = 0.8 m, attached to a thin massless chain connected to an anchor that is resting on the seabed. The angle of the chain is 30 degrees. There are no surface waves today, but the current flowing to the right exerts a horizontal force Fc = 50 N on the ball. The density of water is 1000 kg/m³, and the volume of a sphere is (4/3)πR³.
What is the tension in the chain?