Определить скорость V и полное ускорение а точки в

Determine the velocity V and the total acceleration and the points at the time when it moves in a circle of radius 1 m according to the equation x = At + Bt ^ 3 where x - curvilinear coordinates reckoned along the circle from a point taken as the primary.

Task 10001. Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.