The length of a train is 130 meters and its speed is 45 km/hr. the train passes a bridge in 30 seconds. what is the bridge's length?
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let the length of a bridge be x m
total distance covered = 130 +x
time taken = 30 seconds
speed = 45km/hr = 12.5 m/s
by given conditions
130 +x = 12.5 x 30
x = 375 - 130 = 245 m
total distance covered = 130 +x
time taken = 30 seconds
speed = 45km/hr = 12.5 m/s
by given conditions
130 +x = 12.5 x 30
x = 375 - 130 = 245 m
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