To a bar of mass m lying on a smooth horizontal plane, a constant modulo force F = mg / 3 was applied. In the process of its rectilinear motion, the angle a between the direction of this force and the horizon is changed according to the law a = ks, where k is the constant, s is the path traversed by the bar (from the initial position). Find the speed of the bar as a function of the angle a.
Task 11103. A detailed solution with a brief description of the condition, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
If you have any questions about the solution, please write. I try to help.