After 13.4 seconds a jogger's displacement is 640 meters. What is the average velocity in meters/second?

Question

What is the average velocity in km/h?

Answer 1

640/13.4=47.8m/s^2

Answer 2

easy

the speed is 640 meters divided by 13.4 seconds, i.e. 48.5 meters per second.

but this is not possible, because the typical jogger will run around 3 to 4 meters per second. Whereas 48.5 meters per second is 175 kph or 109mph...

so there must be an error in the numbers you give

Answer 3

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Answer 4

640/13.4=47.761194 m/s

0.64*3600/13.4 = 171.9403 km/h

Answer 5

s = 640 m/13.4 sec.

Answer 6

47.761194 m/s