A 350 m long train passes over a 250 m long bridge at a speed of 54 km/h. How long will it taketo cross the bridge
Question
A 350 m long train passes over a 250 m long bridge at a speed of 54 km/h. How long will it take to cross the bridge?
Solution
To solve this problem, we first need to understand that the total distance the train needs to cover is the length of the train itself plus the length of the bridge.
Step 1: Add the length of the train and the bridge 350 m (train) + 250 m (bridge) = 600 m
Step 2: Convert the speed of the train from km/h to m/s because the length is given in meters and we need to find the time in seconds. 1 km = 1000 m 1 hour = 3600 seconds So, 54 km/h = 54 * 1000 m / 3600 s = 15 m/s
Step 3: Use the formula time = distance / speed to find the time it takes for the train to cross the bridge. Time = 600 m / 15 m/s = 40 seconds
So, it will take the train 40 seconds to cross the bridge.
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