A train 50 m long passes over a bridge at a velocity of 30 km/h. If it takes 36 s to cross the bridge, then the length of the bridge will be :
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Length of Bridge = 249.88 meters
Step-by-step explanation:
Length of train = 50m
Speed = 30 km/h = 30*1000/3600 = 8.33 m/s
Time taken to cross the bridge = 36 s
Thus, (Length of Bridge + Length of train) = Speed * Time = 8.33 * 36 = 299.88
Or, If the Length of the bridge is x, then
x + 50 = 299.88 or, x = 299.88 - 50 = 249.88 meters
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