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QUESTION
Q
What is the time taken by a train of length 550 m, travelling at a speed of 90 km/hr to cross a pole ?
Solution
Length of the train = 550 mSpeed of the train = 90 km/hr = 90 × (5/18) = 25 m/secTime taken to cross the pole =...
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Solution
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Keynote
To convert speed in km/hr to m/sec multiply it with 5/18.
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