A car is driven 1200 m north at 20.0 m/s and then driven 1600 m east at 25.0 m/s. What is the magnitude of the average velocity for this trip?
A. 16.1 m/s
B. 22.6 m/s
C. 31.3 m/s
D. 11.3 m/s
E. 62.2 m/s
Answer: A
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(a) Boron (b) Aluminum (c) Fluorine (d) Lithium