a train of length 150 meter cross a man in 6 second, who runs at speed of 6km/hr. train speed?
explain solution
- Himanshi
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11 उत्तर
11 उत्तर
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310Modal content
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84 km/hr...Bcz...Crossing at same direction.2Modal content
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96 km/yr if the direction of train n man is opposite ,84km/hr direction is same-1Modal content
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900Modal content
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900Modal content
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first u tell in which direction the man was running , I mean in the direction of train or against the direction of train......1Modal content
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If same direction then answer is 96 km/hr if opposite direction then answer is 84 km/hr1Modal content
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96-1Modal content
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which one is correct0Modal content
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96km/hr. Let the man be in rest. So train relative velocity=150/6=90km/hr So total speed of train =90+6=96km/hr *If the direction of both train and man are same7Modal content
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- manoranjan
- sayali
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- amit
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Let the speed of the train be x km/hr
Relative speed = (x+6) km/hr = [(x+6)×5/18][(x+6)×518] m/sec
150/6=(x+6)×5/18 or 5x+30=450 or x = 84 km/hr1Modal content
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