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A player bounces a 0.50-{\rm kg} soccer ball off her head, changing the velocity of the ball from initial velocity = (8.3 m/s){{\hat x}} + ( -2.6...

A player bounces a 0.50-{rm kg} soccer ball off her head, changing the velocity of the ball from initial velocity = (8.3 m/s){{hat x}} + ( -2.6 m/s){{hat y}}
to final velocity= (5.4 m/s){{hat x}} + (3.6 m/s){{hat y}}.
If the ball is in contact with the player's head for 6.7 {rm ms}, what is the direction of the impulse delivered to the ball?

This question was asked on Mar 17, 2010.

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