Impulse: A batter hits a foul ball. The 0.14-kg baseball that was approaching him at 40 m/s leaves the bat at 30 m/s in a direction perpendicular to the line between the batter and the pitcher. What is the magnitude of the impulse delivered to the baseball?
A. 9.8 N ? s
B. 1.4 N ? s
C. 3.5 N ? s
D. 5.6 N ? s
E. 7.0 N ? s
Answer: E
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