Chapter 9, Problem 22PCE

A player bounces a 0.43-kg soccer ball off her head, changing the velocity of the ball from $\stackrel{\to }{{\text{v}}_{\text{i}}}=(8.8\text{ m/s})\hat{\text{x}}\text{ + (-2}\text{.3 m/s)}\hat{\text{y}}\text{ to }\stackrel{\to }{{\text{v}}_{\text{f}}}=(5.2\text{ m/s})\hat{\text{x}}\text{ + (3}\text{.7 m/s)}\hat{\text{y}}$. If the ball is in contact with the player’s head for 6.7 ms, what are (a) the direction and (b) the magnitude of the impulse delivered to the ball?