Решение задачи по физике раздел 21 пункт 86 механика

86. A uniform sphere rolls without slipping with a plane inclined at an angle of 15 ° to the horizon. How long it will take the path of 2 m, and what will be its speed at the end of the path?

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