Решение задачи по физике раздел 21 пункт 28 механика

28. Two ball mass m = 1 g each are suspended on the filaments, the upper ends of which are connected together. The length of each thread l = 10 cm. What are the identical charges is necessary to inform the balls to split thread at an angle α = 60°?

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