How long does it take for a 110 meter long train running at 72 km per hour to cross a 90 meter long bridge?
Answers
Answered by
0
Answer:
20 m/s
Step-by-step explanation:
72 x 5/18
=20 m/s
thus time taken = (110 + 90)/20
= 10 seconds
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Answered by
2
Answer:
total time taken by the train to cross the bridge= 10 second
Step-by-step explanation:
speed of train,v = 72 km/h = 20 m/s
length of bridge = 90 m
length of train = 110 m
total distance cover by train to cross the bridge,s = 110 + 90 = 200 m
therefore,
total time taken by the train to cross the bridge
= s/v = 200/20 = 10 second
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