Two material points move in a plane so that the coordinates of the first point are x1=cos2pt, y1=sin2pt, and the radius vector of the second is r=2ti (0.5-2t^2)j. What is the distance between the points at time 5.0 c?

A detailed solution with a brief note 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, write. I try to help.