A train moving at 54 km/hr crosses a bridge in 45 seconds. The length of train is 150 meters. Find the length of the bridge.Question Description : 545 m525 m500 m575 m
Question
A train moving at 54 km/hr crosses a bridge in 45 seconds. The length of train is 150 meters. Find the length of the bridge.Question Description : 545 m525 m500 m575 m
Solution
Sure, here is the step by step solution:
Step 1: Convert the speed of the train from km/hr to m/s. We know that 1 km/hr = 5/18 m/s. So, 54 km/hr = 54 * (5/18) = 15 m/s.
Step 2: The train crosses the bridge in 45 seconds. So, the total distance covered by the train (which includes the length of the train and the length of the bridge) when it crosses the bridge is Speed * Time = 15 m/s * 45 s = 675 meters.
Step 3: We know the length of the train is 150 meters. So, the length of the bridge is Total distance - Length of the train = 675 meters - 150 meters = 525 meters.
So, the length of the bridge is 525 meters.
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