Answer:
B. 3.9 m/s
Step-by-step explanation:
In seconds, 42 min, 25 sec (s):
(42 min)(60s/1min) = (42)(60) s = 2,520 s
2,520 s + 25 s = 2545 seconds
So now, we can calculate the average speed in meters per second (m/s) :
(10,000 meters) / (2545 seconds) = 3.93 m/s
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