A train 100 m long is to cross a river bridege of length 800 m. What time will it take to cross the bridge. Given that trains velocity is 36 km /h
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Answer:
total length =900m
change into m/s= 36 ×5/18=10m/s
so, time= distance /speed
=900/10 = 90sec.
answer is 1minute and 30 seconds
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Total distance required for the train to cross the bridge is,
d = (100 + 800) m = 900 m
The speed of the train is,
v = 36 km/h = 36 × 5 / 18 = 10 m/s
Hence the time taken to cross the bridge is,
t = 900 / 10 = 90 s.
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