Solve please

3. The block shown is pulled across the horizontal surface at a constant velocity by the force shown. If M= 5.0 kg, F = 14 N and 0=350, a = 0 Calculate the friction between the surfaces. (Ans= 11.5 N) . What if the applied force is no longer applied to the block, describe the motion of the block immediately after that. Sketch its velocity-time graph from the beginning until its stops