Решение задачи по физике раздел 47 пункт 53 механика

53. Ball from some material falling vertically from a height of 0.9 meters, repeatedly bouncing off the floor. Determine the recovery rate of the material of the ball when it hits the floor, if after falling to a shock which passed time t = 1, c.

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