an Express train 80 m long is running at the rate of 45 km per hour how much time will it take to cross a platform 220 M long
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length of the train = 80 m
length if the platform = 220 m
speed of the train = 45 km/hr
since the length of the train and platform is given in m so the speed should be converted to m/s.
therefore speed =
12.5m/s.
also the train is crossing a platform so it travels the length of platform along with its own length.
so distance = 220 + 80 = 300m
therefore time =
24 seconds
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