A 0.276-kg volleyball approaches a player horizontally with a speed of 15.2 m/s. The player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 21.4 m/s.

(a) What impulse is delivered to the ball by the player? (Take the direction of final velocity to be the positive direction. Indicate the direction with the sign of your answer.)__________kg · m/s
(b) If the player's fist is in contact with the ball for 0.0600 s, find the magnitude of the average force exerted on the player's fist. __________N

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a According to the law of conservation of momentum the impulse delivered to an object is equal to th... View the full answer