3. The graph shows the net force F, which varies with position, applied to a 4 kg object. The object, starting at position x = 1 m, moves to the right with a speed of 2 m/s. When the object passes through x = 2 m, what speed does the object have? F (N) 20 15 10 5 1 2 H 3 4 6 x (m)