Acceleration: A car is traveling north at 17.7 m/s. After 12 s its velocity is 14.1 m/s in the same direction. Find the magnitude and direction of the car's average acceleration.
A. 0.30 m/s2, south
B. 2.7 m/s2, south
C. 0.30 m/s2, north
D. 2.7 m/s2, north
Answer: A
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