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.
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Only solve by swapping the F1 and F2 function plots (F1 is the blue graph and F2 is the green graph).