Решение задачи по физике раздел 11 пункт 2 механика

2. In the spring gun spring is compressed at x1 = 20 cm. With a platoon of her tightened further x2 = 30 cm. How fast will leave a gun arrow mass m = 50 g, if the spring is 200 N / m?

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