The graph below shows the force applied to a 4.0 kg cart initially at rest but free to move on a horizontal track. Forces (in N) are measured on the ordinate and times (in s) are measured on the abscissa. Use the following values for the graph: a = 4.9 and x = 2.0. Assume the graph consists of regularly spaced grid squares. Calculate the final velocity of the cart, after being subjected to the forces illustrated in the graph.
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