A weight is suspended from a cord. The weight was taken aside so that the cord took a horizontal position, and released. How great is the tension in the cord when the kettlebell passes the equilibrium position? What angle does the cord make with the vertical when the tension in the cord is equal to the weight of the kettlebell?
A detailed solution with a brief note of the condition, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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