Train traveling at a speed 90 kms/hr crossis a man standing on a platform in 8 second find the time taken by the train to cross the platform to length 250 mtrs
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Length of platform could be 250 m & not 250 k.m.
The man standing on a platform may be considered as a point the train is crossing.
Speed of train =( 90×1000) / (60×60) m/sec = 90000/3600 = 900 / 36= 100/4 = 25m/ sec
Distance train travels in 8 sec = 25 × 8 = 200 m
Length of train = 200 m
Length of platform = 250 m
Total distance for train to fully cross = length of train + length of platform = 200 + 250 = 450 m
Time taken to cross platform fully = distance/speed = 450 / 25 = 18 sec
Step-by-step explanation:
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