Messi kicked a 0.20 kg soccer ball was moving at 3.0 m/s [E] when it reflected West from a goal post. The graph represents the force upon the soccer ball while hitting the wall. 3 Force (N) 2 0 0.05 0.15 0.25 0.35 0.45 0 0.1 0.2 0.3 0.4 0.5 Time (S) a) What is the impulse (include direction) on the ball? (2) b) Calculate the velocity of the rebounding ball. (2)