A 480 m long train takes 24 seconds to cross an electric pole.Find the speed of the train in kilometre / hour.
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Answer:
speed = 72kmph
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velocity = distance/time
distance =480m=0.48km
time =24s=24/3600hr=(2/300)hrs
velocity=(0.48)/(2/300)
=(0.48)×(300)/2
=72km/hr
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