Задача 10815.

The solid begins to rotate around a fixed axis with angular acceleration e = at, where a = 2.0 x 10 -2 rad / s ^ 3. How soon after the start of rotation of the vector of the total acceleration of any point of the body will be a 60 ° angle to its velocity vector?

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