A Pitcher Delivers a Fast Ball with a Velocity of 43

Multiple Choice

A pitcher delivers a fast ball with a velocity of 43 m/s to the south. The batter hits the ball and gives it a velocity of 51 m/s to the north. What was the average acceleration of the ball during the 1.0 ms when it was in contact with the bat?

A) 4.3 × 10⁴ m/s², south
B) 5.1 × 10⁴ m/s², north
C) 9.4 × 10⁴ m/s², north
D) 2.2 × 10³ m/s², south
E) 7.0 × 10³ m/s², north