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9th Class Science Time and Motion Question Bank 9th CBSE Science Motion

  • question_answer
      The driver of train A travelling at a speed of 54 kmh-1 applies brakes and retards the train uniformly. The train stops in 5 s. Another train B is travelling on the parallel with a speed of 36 kmh-1. Its driver applies the brakes and the train retards uniform madly; train B stops in 10 s. Plot speed-time graphs for both the trains on the same axis. Which of the trains travelled farther after the brakes were applied?  

    Answer:



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