Задача 10321.

During a game of skittles bits weighing 1.3 kg was thrown horizontally at a height of 1.6 m from the ground at a speed of 7 m / s. In flight, the bit rotates about an axis perpendicular to the bit and passing through its center vertically with the frequency n = 5 ~ 1. Determine the total mechanical energy of the bits.

Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
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