The 30 kg slider block is moving to the left with a speed of 5 m/s when it is acted upon by the forces F1 and F2. If these loadings vary in the manner shown on the graph, determine the speed of the block at t = 6 s. Neglect friction and the mass of the pulleys and cords.
Only solve by swapping the F1 and F2 function plots (F1 is the blue graph and F2 is the green graph).