A. 45.5 km/h
B. 55.5 km/h
C. 50.4 km/h
D. 52.2 km/h
🧠 Explanation:
A speed of 14 meters per second equals 50.4 km/h. Convert by multiplying 14 by 3600 (seconds in an hour) and dividing by 1000 (meters to kilometers): 14 × 3.6 = 50.4. This helps students learn unit conversions, useful in physics or everyday speed calculations.
