How much time does it take a person to walk 12 kilometers north at a velocity of 6.5km/h?
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distance s=12km=12x1000=12000m
velocity v=6.5km/h=6.5x1000/60x60=1.8m/s
time t=?
speed=distance travelled /time
time, t=distance, s/speed,v
t=s/v
t=6666.66sec.
t=1.85hour (approx)
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