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yrelhan4 Group Title

A train is moving with uniform velocity on a straight track. A boy moving at 4 km/h due east observes that the train is moving due north. Another boy moving at 1 km/h due south claims that the train is moving towards north-east. What is the speed of the train in ground frame ?

  • one year ago
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  1. Bri_Durbin Group Title
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    idk sorry

    • one year ago
  2. AravindG Group Title
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    try to write expressions of relative velocities

    • one year ago
  3. yrelhan4 Group Title
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    done that. the question does not give me v of boys realtive to train. so how to go about it after that?

    • one year ago
  4. yrelhan4 Group Title
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    @AravindG more hints?

    • one year ago
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spraguer (Moderator)
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