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Q.12A train is moving with uniform velocity on a straighttrack. A boy moving at 4 km/h due east observes thatthe train is moving due north. Another boy moving at 1km/h due south claims that the train is moving towardsnorth-east. What is the speed of the train in groundframe?(1) 3 km/hr(2)4 km/hr(3) 5 km/hr(4) 6 km/hr |
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Answer» 5km/hr train moving on ground , boy moving due north and another boy moving south ,boy move your opposite direction to increased train moving speed |
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