Решение задачи по физике раздел 53 пункт 20 механика

20. cord suspended weight. The weight taken aside so that the cord took a horizontal position and released. How great is the power cord tension T at a time when the weight passes the equilibrium position? What angle φ to the vertical of the power cord when the cord tension force equal to the force of gravity of the weight?

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)