Recent studies have raised concern about 'heading' in youth
soccer (i.e., hitting the ball with the head). A soccer player
'heads' a size 5 ball, deflecting it by 33.0°, but keeping its
speed of 15.80 m/s constant. A size 5 ball has a mass of
approximately 0.396 kg.
a) What is the magnitude of the impulse which the player imparts
to the ball?
b) If the player's head has a mass of 4.70 kg, what is the
magnitude of the average acceleration of the player's head during
the impact? Assume that over the brief time of the impact, 21.00
ms, the player's head can be treated separately from the player's
body.