8.1.8
On the rectilinear part of the path, the center B of the diesel locomotive's parachute moves according to the law xB = 15t - 0.25 cos 30t, yb = 0.5 - 0.25 sin 30t. At the moment of time (c) t = n, determine the speed of the point C of the paired one, if BC = 1.5 m (Answer 16.8)