please solve this question.
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Answered by
1
Answer:
40 seconds
Step-by-step explanation:
Length of train = 360m
Speed = 45 km/hr
Length of bridge = 140m
The train is considered to have crossed the bridge only when its end has done so.
Hence, total distance to be travelled = length of bridge + length of train
= 140 + 360 m = 500m
Speed can be converted from Km/hr to M/s for convenience
45 Km/hr x 5/ 18 = 12.5 m/s
therefore time = distance/speed= 500/12.5= 40 seconds
Have a good day
Answered by
1
Answer:
hope it helps u
if so please mark me as the brainliest
thanks:)
Step-by-step explanation:
Speed = 45 Km/hr = 45×(5/18) m/sec
= 25/2 m/sec
Total distance = 360+140 = 500 meter s
Time = Distance/speed
=500×2/25
=40 seconds
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