all train hundred metre long is moving with the velocity of 72 km per hour find the time it takes to cross the bridge which is 2 kilometre long
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Given:
The length of train = 100 m = 0.1 km
The length of bridge = 2 km
The velocity of train = 72 km / hr
To Find:
The time taken by the train to cross the bridge.
Calculation:
- The total distance train has to cover to cross the bridge = The length of train + The length of bridge
⇒ Distance = 2 + 0.1 = 2.1 km
- Time taken = Distance / Velocity
⇒ T = 2.1 / 72
⇒ T = 0.029 hour
⇒ T = 1.75 minute
⇒ T = 105 seconds
- So, the train will take 105 seconds to cross the bridge.
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