A player bounces a 0.43-kg soccer ball off her head, changing the velocity of the ball from

Question:

A player bounces a 0.43-kg soccer ball off her head, changing the velocity of the ball from v(vector)_i = (8.8 m/s)x̂ + (– 2.3 m/s)ŷ to v(vector)_f = (5.2 m/s)x̂ + (3.7 m/s)ŷ. If the ball is in contact with the player’s head for 6.7 ms, what are

(a) The direction

(b) The magnitude of the impulse delivered to the ball?