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Find the length of acro bridge in which a train140 m long travelling at 54 kmph can cross in 30 seconds |
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Answer» ong>Step-by-step EXPLANATION: SPEED of train = 54 km /hr 1 km = 1000 m 1 hr = 3600 sec Speed of train in m/s = 54 * 1000 / 3600 = 15 m/s DISTANCE = Speed * time => Distance covered in 30 secs = 15 * 30 = 450 m Length of train = 140 m Length of BRIDGE = 450-140 = 310 m Length of bridge = 310 m
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