Задача 10701.

The material point moves according to the law r = at ^ 3 * i + bt ^ 2 * j + ytk, where a = 1 m / s ^ 3, b = 2 m / s ^ 2, y = 4 m / s. Find the distance from the origin of the point two seconds after the start of the movement.

A detailed solution with a brief record of the condition, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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