The collar has a mass of 30 kg and is supported on the rod having a coefficient of kinetic friction mu k = 0.4. The attached spring has an unstretched length of 0.2 m and a stiffness k = 50 N/m. Determine the speed of the collar after the applied force F = 200 N causes it to he displaced x = 1.5 m from point A. When x = 0 the callar is held at rest. Neglect the size of the collar in the calculation.
