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Find the time taken by a train of length 120 metre to cross an electric pole with a speed of 108 kmph. 1. 4 sec2. 6 sec3. 5 sec4. 3 sec |
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Answer» Correct Answer - Option 1 : 4 sec Given: Speed of train = 108 km/hr Length of train = 120 metre Detailed solution: 108 km/hr = (108×5)/18 metre/sec ⇒ 30 m/sec Time taken by train to cross an electric pole will be. ⇒ 120/30 ⇒ 4 ∴ Time taken by train to cross the pole is 4 seconds
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